# MATHEMATICS GRADE 2 Extension Projects

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1 MATHEMATICS GRADE 2 Extension Projects WITH INVESTIGATIONS 2009 These projects are optional and are meant to be a springboard for ideas to enhance the Investigations curriculum. Use them to help your students apply what they have learned each quarter and to expand their math skills. This is just the beginning of this process. Core Content Numbers & Algebra Geometry & Measurement Compare and represent whole numbers up to 1000, with an emphasis on place value. Demonstrate mastery of addition and subtraction basic facts; add and subtract one- and two- digit numbers in realworld and mathematical problems. Recognize, create, describe, and use patterns and rules to solve real-world and mathematical problems. Use number sentences involving addition, subtraction, and unknowns to represent and solve real-world and mathematical problems; create real-world situations corresponding to number sentences. Identify, describe, and compare basic shapes according to their geometric attributes. Understand length as a measurable attribute; use tools to measure length. Use time and money in real-world and mathematical situations. Mathematics Grade 2 Extension Projects with Investigations Page 1

2 Grade 2 Quarter 1 Project Unit 1 Unit 2 (Investigation 1) Counting, Coins, and Investigations Shapes, Blocks, and Symmetry Strand MN Benchmark Benchmark # Read, write and represent whole numbers up to Representations may include numerals, addition, subtraction, multiplication, words, pictures, tally marks, number lines and manipulatives, such as bundles of sticks and base 10 blocks Making tens, fact families, doubles plus or minus one, counting on, counting back, and the commutative and associative properties. Use the relationship between addition and subtraction to generate basic facts. Demonstrate fluency with basic addition facts and related subtraction facts Use mental strategies and algorithms based on knowledge of place value to add and subtract two-digit numbers. Strategies may include decomposition, expanded notation, and partial sums and differences Geometry & Measurement Geometry & Measurement Solve real-world and mathematical addition and subtraction problems involving whole numbers with up to 2 digits. Identify and name basic two-dimensional shapes, such as squares, circles, and triangles, rectangles, trapezoids, and hexagons Describe, compare, and classify two- and threedimensional figures according to number and shape of faces, and the number of sides, edges and vertices (corners) **Note: The Geometry and Measurement standards will be addressed during the Quarter 2 Project. Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 2

3 GRADE 2 QUARTER 1 PURPOSE: NUMBER SENSE Numbers! Numbers! Everywhere! These activities can be done as a class, small group, individually, with a partner, or a team. They can be completed in class or as homework. Students numbers can be as large or small as they choose. Choose one or all of the following: 1. Students will create a number journal using a variety of ways to record the numbers they find in their every day lives. This number can be found in the classroom, somewhere else at school, at home, in the neighborhood, at the store, wherever they can find a number! Any number they find will become the number of the day. They will record their findings and show that number in a variety of ways. My Number of the Day could be a one time activity or something they can do again and again with a new number over several days. 2. Students will decompose numbers using How many ways can you break up this number? This could be a one time activity or something they can do again and again with a new number over several days. 3. Students will show the many ways to make the number 10 with How many ways to make 10 are there? using 2, 3, and/or 4 addends. 4. Students will create real-world mathematical addition problems using items and people that are in their classroom, school, or home with Math in My World. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Great websites for Number and practice (and they re fun too!): (Finding numbers on the hundreds chart) (a variety of math games) (a variety of math games) (a variety of Math games) Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 3

4 Name: My Number of the Day The number I found was Where was your number? Here are the different ways I can record this number: Using... Numerals Addition (Numbers Written Down) (? +? =? ) Subtraction (? -? =? ) Words Pictures Tally Marks (Use Another Paper If You Need To) A Number Line Or Hundreds Chart (Use Another Paper If You Need To) Tens And Ones My Own Way (Choose One From Above And Do It A Little Differently Or Make Up Your Own) Another Way Still Another Way The Last Way Circle the one you think was your best work and best shows the number you found. Put an X on the one you think was a difficult way to show this number. Why? Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 4

5 Name: How Many Ways Can You Break Up This Number? Here is an example. If I choose the number 5, then these are all of the addition equations I can make: I made 17 addition equations! Pick a number between 1 and 20. Write it here: Write all your addition equations in the box...or on another piece of paper How many addition equations did you make with your number being the sum? (Count your equations when you are finished). Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 5

6 Name: Making 10 2 addends How Many Ways Can You Make 10? Show all ways to make ten. Color some of the blocks red and the other part blue. Then write the equation. red red red red red blue blue blue blue blue Equation = 10 Equation Equation Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 6

7 Name: Making 10 3 addends How Many Ways Can You Make 10? Show all ways to make ten. Color some of the blocks red, some blue, and the other part yellow. Then write the equation. red red red red red blue blue blue blue yellow Equation = 10 Are there more ways? Show them on another piece of paper. Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 7

8 Name Making 10 4 addends HOW MANY WAYS CAN YOU MAKE 10? Show all ways to make ten. Color some of the blocks red, some blue, some green, and the other part yellow. Then write the equation. red red red red red red red blue green yellow Equation = 10 Equation Equation Equation Equation Equation Equation Equation Equation Are there more ways? Show them on another piece of paper. Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 8

9 Name: More Equations for Equation Equation Equation Equation Equation Equation Equation Equation Equation Equation Equation Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 9

10 Name: Example: My Own Math Problems - Addition Someone Gives You Things! What Do YOU Want More Of? One day my friend Fred gave me 22 gummy bears. (person) (number) (things) The next day my uncle Joe gave me 13 more gummy bears. (person) (number) (same things) How many gummy bears (same things) Picture: do I have now? Equation: = 35 gummy bears Label (things) Now do a problem from YOUR world. One day gave me. (person) (number) (things) The next day gave me more. (person) (number) (same things) How many do I have now? (same things) Picture: Equation: + = _ Label (things) Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 10

11 Name: My Own Math Problems - Addition Moving things come along...be creative! There were at the. (number) (things) (place) more came along. (number) (same things) How many are there now? (same things) Picture: Equation: + = Label (things) What else can come together? There were at the. (number) (things) (place) more came along. (number) (same things) How many are there now? (same things) Picture: Equation: + = Label (things) Mathematics Grade 2 Quarter 1 Extension Projects with Investigations Page 11

12 Grade 2 Quarter 2 Project Unit 2 (Investigations 2 and 3) Unit 3 Shapes, Blocks, and Symmetry Stickers, Number Charts, and Story Problems Strand MN Benchmark Benchmark # Read, write and represent whole numbers up to 1000 (Q2: up to 200). Representations may include numerals, addition, subtraction, multiplication, words, pictures, tally marks, number lines and manipulatives, such as bundles of sticks and base blocks. Algebra Geometry & Measurement Geometry & Measurement Geometry & Measurement Compare and order whole numbers up to (Q2:up to 200) Use place value to describe whole numbers between 10 and 1000 (Q2: between 10 and 200) in terms of groups of hundreds, tens and ones. Know that 100 is ten groups of 10, and 1000 is ten groups of 100. Use mental strategies and algorithms based on knowledge of place value to add and subtract two-digit numbers. Strategies may include decomposition, expanded notation, and partial sums and differences. Estimate sums and differences up to 100. Solve real-world and mathematical addition and subtraction problems involving whole numbers with up to 2 digits. Demonstrate fluency with basic addition facts and related subtraction facts. Use strategies to generate addition and subtraction facts including making tens, fact families, doubles plus or minus one, counting on, counting back, and the commutative and associative properties. Use the relationship between addition and subtraction to generate basic facts. Understand how to interpret number sentences involving addition, subtraction and unknowns represented by letters. Use objects and number lines and create real-world situations to represent number sentences. Identify and name basic two- and three-dimensional shapes, such as squares, circles, and triangles, rectangles, trapezoids, hexagons, cubes, rectangular prisms, cones, cylinders and spheres. Describe, compare, and classify two- and three dimensional figures according to number and shape of faces, and the number of sides, edges and vertices (corners). Identify pennies nickels, dimes and quarters. Find the value of a group of coins and determine combinations of coins that equal a given amount Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 12

13 Grade 2 Quarter 2 Project Purpose: Geometry and Shapes These activities can be done as a class, small group, individually, with a partner, or a team. They can be completed in class or as homework. Choose one or all of the following: Project #1 Extreme Math Makeover! Students will create a mathematical room. Depending on your students, they can create one or two rooms or an entire house. Students will use their number sense and understanding of shapes to create the perfect room for a family who loves numbers and geometric shapes. They will use as many two- and threedimensional shapes as possible. They will keep track of the quantity of shapes used. Students will make a list of the different items (walls, windows, doors, and furniture etc.) they will need for the mathematical room. Students will make a list of the different shapes they will need to create the mathematical room. Students will keep track of the number of each item they will need and will calculate the totals. Students will create a blueprint for their room design. Students can also create a 3D model of their design. Project #2 Let s Go Shopping! Students will use their understanding of coins and their values to create a store. Students will decide on a store name and create a logo. Students will prepare a magazine or TV advertisement. Students will price items and display them. Students will pretend they are store clerks and customers. Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 13

14 The Story: The Geometry Family loves math! The grown-ups in the family have jobs that need a lot of math skills. The children all love math and think it is fun. The family wants a room that shows their love of numbers and shapes. They have hired you to create this room. They want to have lots and lots of shapes and patterns and numbers that will show how much they love math. They have hired you to be the architect, the contractor, and the interior designer of their new room. Be sure to have lots of windows and bricks and things for the children to count! They love it! Be creative! Use as many 2D and 3D shapes as you can. Just think of the interesting shaped windows, doors and furniture you can create! Your imagination can run wild! Make the best house you can for the Geometry family. Have fun! Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 14

15 s Math Room (Your name) Geometric shapes to use: circles triangles rectangles Trapezoids hexagons squares cubes cones cylinders rectangular prisms spheres Room (Kitchen? Bathroom? Living room?) Item (Windows, furniture, appliances, walls, doors, pictures etc.) Shape 2D or 3D shape? Quantity (How many?) Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 15

16 Name: Use these pages to make more rooms for your house. Room Item (window, furniture, wall etc.) Shape 2D or 3D shape? Quantity (How many?) Room Item (window, furniture, wall etc.) Shape 2D or 3D shape? Quantity (How many?) COOL STUFF! On a separate piece of paper create a blueprint for your room (house) design. You can also create a 3D model of their design using clay, boxes, wood shapes, etc. Share your blueprint and your 3D model! Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 15

17 Name: Let s Go Shopping! You are now the owner of a store where your classmates are going to be your customers. You will create a logo and an advertisement for your new store. You will price your items and make believe that you are selling items to your friends. The Name of My Store The Logo for My Store Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 16

19 Name: Let s Go Shopping! Create a list of the items you will sell at your store. Choose 10 things to sell and decide on their price. All items need to be less than \$1.00 each. Item Price If you sell everything at your store, how much money will you make? \$ Mathematics Grade 2 Quarter 2 Extension Projects with Investigations Page 18

20 Grade 2 Quarter 3 Project Unit 4, Unit 5, Unit 6 Pockets, Teeth, and Favorite Things How Many Floors? How Many Rooms? How Many Tens? How Many Ones? Strand MN Benchmark Benchmark # Algebra Algebra Algebra Geometry & Measurement Read, write and represent whole numbers up to 1000 (Q3: up to 500). Representations may include numerals, addition, subtraction, multiplication, words, pictures, tally marks, number lines and manipulatives, such as bundles of sticks and base 10 blocks. Compare and order whole numbers to Solve real-world and mathematical addition and subtraction problems involving whole numbers with up to 2 digits. Demonstrate fluency with basic addition facts and related subtraction facts. Use place value to describe whole numbers between 10 and 1000 (Q3: between 10 and 500) in terms of groups of hundreds, tens and ones. Know that 100 is ten groups of 10, and 1000 is ten groups of 100. Use addition and subtraction to create and obtain information from tables, bar graphs and tally charts. Identify, create and describe simple number patterns involving repeated addition or subtraction, skip counting and arrays of objects such as counters or tiles. Use patterns to solve problems in various contexts. Understand how to interpret number sentences involving addition, subtraction and unknowns represented by letters. Use objects and number lines and create realworld situations to represent number sentences. Use number sentences involving addition, subtraction, and unknowns to represent given problem situations. Use number sense and properties of addition and subtraction to find values for the unknowns that make the number sentences true. Identify pennies, nickels, dimes and quarters. Find the value of a group of coins and determine combinations of coins that equal a given amount Extension Projects with Investigations Page 19

21 Grade 2 Quarter 3 Project Purpose: Number Sense and Algebra Project #1 The Gigantic School With a copy of the school s floor plan or creating their own design by counting all the rooms, students will add several floors to their school. Project #2 Algebra is Awesome Alphabet Book Students will create algebra problems for each letter of the alphabet and create an alphabet book of algebra problems using letters as variables. The variable letter and the topic of the page will match. Students will create a story problem and a solution for each letter. This activity can be done individual, with a partner, as a team or with the entire class. Students could work on this all at once or do a page or two per day. Note: To make a class book or to do a display of algebra stories, use the enlarged version at the end of the book pages. Each child will choose a letter or letters. Some more great math websites for a variety of math subjects: Extension Projects with Investigations Page 20

22 Name: Here is the information about my school. The number of rooms on first floor. Now create a table describing how many floors would be in your school if you added a second and third floor. Rooms on Number of Floors this floor Number of Rooms (17+17) (34+17) (51+17) If your school already has several floors, you can use first floor as your model and keep the pattern going or your can look at the map of your school and repeat that pattern. Example: If the first floor of your school has 20 rooms and the second floor has 17 rooms then the pattern would be as follows: Rooms on Number of Floors this floor Number of Rooms ( ) ( ) ( ) Extension Projects with Investigations Page 21

23 Name: Now create a table of your own school. Complete the pattern. Number of Floors Rooms on this floor Number of Rooms Now make the school using connecting cubes. Extension Projects with Investigations Page 22

24 Algebra is Awesome! My Variable Alphabet Book Written and illustrated by Here is your sample page. You will make 26 pages for the letters in the alphabet. You will write an equation using the letter as the variable in that equation. Your story should include something that begins with that letter. Follow this example. Variable: a Equation 40 a = 25 Solution a = 15 Story There were 40 alligators. Some of them jumped in the pond. There were 25 left on the shore. How many jumped in the pond? 15 alligators jumped in. Variable: a Variable: b Equation Solution a =. Solution b =. Extension Projects with Investigations Page 23

25 Variable: c Solution c =. Variable: d Solution d =. Variable: e Solution e =. Variable: f Solution f =. Extension Projects with Investigations Page 24

26 Variable: g Solution g =. Variable: h Solution h =. Variable: i Solution i =. Variable: j Solution j =. Extension Projects with Investigations Page 25

27 Variable: k Solution k =. Variable: l Solution l =. Variable: m Solution m =. Variable: n Solution n =. Extension Projects with Investigations Page 26

28 Variable: o Solution o =. Variable: p Solution p =. Variable: q Solution q =. Variable: r Solution r =. Extension Projects with Investigations Page 27

29 Variable: s Solution s =. Variable: t Solution t =. Variable: u Solution u =. Variable: v Solution v =. Extension Projects with Investigations Page 28

30 Variable: w Solution w =. Variable: x Solution x =. Variable: y Solution y =. Variable: z Solution z =. Extension Projects with Investigations Page 29

31 Variable: Equation: Solution: = My Story Extension Projects with Investigations Page 30

32 Unit 7 Grade 2 Unit 8 Quarter 4 Project Unit 9 Parts of a Whole, Parts of a Group Partners, Teams, and Paper Clips Measuring Length and Time Strand MN Benchmark Benchmark # Algebra Geometry & Measurement Geometry & Measurement Geometry & Measurement Read, write and represent whole numbers up to 1000 (Q4: up to 1000). Representations may include numerals, addition, subtraction, multiplication, words, pictures, tally marks, number lines and manipulatives, such as bundles of sticks and base 10 blocks. Compare and order whole numbers to Demonstrate fluency with basic addition facts and related subtraction facts. Use place value to describe whole numbers between 10 and 1000 (Q4: between 10 and 1000) in terms of groups of hundreds, tens and ones. Know that 100 is ten groups of 10, and 1000 is ten groups of 100. Use mental strategies and algorithms based on knowledge of place value to add and subtract two-digit numbers. Strategies may include decomposition, expanded notation, and partial sums and differences. Find 10 more or 10 less than any given three-digit number. Find 100 more or 100 less than any given three-digit number. Recognize, name, compare and represent unit fractions with drawings and concrete materials. Round numbers up to the nearest 10 and 100 and round numbers down to the nearest 10 and 100. Estimate sums and differences up to 100. Solve real-world and mathematical addition and subtraction problems involving whole numbers with up to 2 digits. Identify, create and describe simple number patterns involving repeated addition or subtraction, skip counting and arrays of objects such as counters or tiles. Use patterns to solve problems in various contexts. Demonstrate an understanding of the relationship between length and the numbers on a ruler by using a ruler to measure lengths to the nearest centimeter or inch Tell time to the quarter-hour and distinguish between a.m. and p.m. Understand the relationship between the size of the unit of measurement and the number of units needed to measure the length of an object Extension Projects with Investigations Page 31

33 Grade 2 Quarter 4 Project Purpose: Geometry and Measurement - Time Project #1 Tick Tock, There Goes the Clock! 1. Students will keep track of everything they do for an entire day and calculate the elapsed time. 2. Students will create a timeline for their day. 3. Students will create a timeline for their lives. Project #2 Fractions Can I Get a Piece of That? 1. Students will make their own pizza with several different ingredients using fractions. 2. Students will draw examples of common fractions. They will draw fractions of whole shapes and fractions of a group of items. 3. Students will draw examples of fractions of their choice. They will draw fractions of whole shapes and fractions of a group of items. Extension Projects with Investigations Page 32

34 Name: Activity Tick Tock, There Goes the Clock! My Day Time Started am or pm? Time Ended am or pm? Time Elapsed Total Time (24 hours = 1 Day) Extension Projects with Investigations Page 33

35 On a separate piece of paper, make a timeline of your entire day. Include activities, times and elapsed times. Here is a sample of a part of a day: Wake up Get dressed Eat Breakfast Brush teeth Leave House On bus 7:15 7:20 7:30 7:50 8:00 8:10 5 min 10 min. 20 min. 10 min. 10 min. You can also make a timeline of your life. Start when you are born and put in the years of important events. You can end with today or go into the future and predict when you with do some great things! When will you graduate from school? When will you get a job? Will you have a family? What are your future dreams? I am in I was I started second I will I will buy I will born. school. grade. graduate. a car. travel to Mars years 2 years 9 years 1 year 11 years Extension Projects with Investigations Page 34

36 Play TONY FRACTION S PIZZA SHOP Make a PIZZA! Divide it into fourths, fifths, sixths, sevenths, eighths, ninths or tenths. Put a different ingredient on each section. If you want more than one piece with your favorite topping, that s fine, but you need to use at least 3 different ingredients. Draw your pizza and fill in the chart for how you divided your pizza. When you add your fractions together, you ll have a WHOLE pizza! Fractions! Fractions! Fractions! Make different posters (12X18 or larger paper) and put them around the room. Students will draw examples of each of the fractions and also have the opportunity to create some of their own. As they finish their drawing, they can cut them apart and attach them to the correct poster. The titles for the posters and the student pages are on the following pages. 1/2 1/3 1/4 2/3 3/4 1/6 1/8 are the common fractions that will be used. 1/2 of a whole: 1/2 of a group: Extension Projects with Investigations Page 35

37 Name s Pizza Sample: pepperoni cheese peppers olives bacon sausage pineapple ham onion mushrooms Fraction Ingredient 1/4 mushrooms 1/2 pepperoni 1/8 olives 1/8 cheese 1 whole Pizza! Extension Projects with Investigations Page 36

38 Name s Pizza Fraction pepperoni cheese peppers olives bacon sausage pineapple ham onion mushrooms Ingredient Extension Projects with Investigations Page 37

39 1/2 of a whole 1/2 of a group 1/3 of a whole 1/3 of a group 1/4 of a whole 1/4 of a group 2/3 of a whole 2/3 of a group 3/4 of a whole 3/4 of a group 1/6 of a whole 1/6 of a group 1/8 of a whole 1/8 of a group of a Extension Projects with Investigations Page 38

40 1/2 of a whole 1/3 of a group 2/3 of a whole 3/4 of a group 1/8 of a whole Put these on the posters. 1/2 of a group 1/3 of a whole 1/4 1/4 of a of a whole group 2/3 3/4 of a of a group whole 1/6 1/6 of a of a whole group 1/8 Your own of a fraction! group Extension Projects with Investigations Page 39

41 Great website for fraction flags: More fractions websites: Extension Projects with Investigations Page 40

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