Lee County Schools Concept/Unit Map Mathematics Grade 2

Transcription

1 Unit 1: Place Value The position of a digit in a numeral determines its place value. What is the relationship between place value and understanding numbers? Number 2-NBT-1, 2NBT-1a, 2NBT-1b, 2NBT-2 Compare and order numbers 2NBT-4 Reading and writing numbers 2NBT-3 How do we compare and order numbers up to How do we read and write numbers to 1000? a 1000 using the symbols <, >, and =? 2NBT-3 2NBT-4 What is place value? 2NBT-2, 2NBT-1, 2NBT-1b How do we count by 5 s, 10 s, and 100 s? 2NBT-2, 2NBT-1a, 2NBT-1b How do we write a number in expanded form? 2-NBT-3 digits, hundreds, tens, ones, numerals greater than, less than, equivalent expanded form, standard form Go Math Chapters 1 & 2, Investigations Units 1, 3, 6

2 Unit 2: Add and Subtract (20 days) Numbers can be broken apart in many ways. Numbers can be compared by looking at the digit in thousands, hundreds, tens, and ones place. What strategies can we use to add and subtract within 1000? Mentally add 10 or 100 to a number Use concrete models or drawings to and subtract 10 or 100 from a number solve addition and subtraction 2-NBT.8 2-NBT.7, 2-NBT.9 Fluently add and subtract numbers 2-NBT.5 Add up to 4-two digit numbers 2-NBT.6 How can I use fluency of basic addition facts to solve real world problems? 2-NBT.5 What strategies would you use to add and subtract fluently? 2-NBT.5 What strategies are needed to add 10 or 100 to a number? What strategies are needed to subtract 10 or 100 from a number? 2-NBT.8 How can you use drawings or models to add or subtract? 2-NBT.7 How does using strategies based on place value help us add or subtract? 2-NBT.9 What strategies can I use or add or subtract multi-digit numbers without regrouping (through 3- digits)? 2-NBT.6 place value, properties of Strategies, mental math operations Unit Assessment Go Math! Chapters 3-6, Investigations Units 1, 2, 3, 4, 8

3 Unit 3: Money (20 days) There are many ways to represent the same amount of money. How is counting money useful in real life? Solving word problems with dollar bills and coins 2-MD.8 How do you show the same amount of money using different sets of coins? 2-MD.8 How can you use money to solve word problems? dollar bills, coins, dimes, nickels, quarters, half-dollar Using the money symbols appropriately 2-MD.8 Why is it important to use the correct symbols when writing money value? 2-MD.8 dollar and cent sign Go Math! Chapter 7, Investigations Units 1, 3, 6, A Chair for My Mother by Vera B. Williams

4 Unit 4: Time (10 Days) A clock, analog or digital, is a tool to measure time. Minutes are small more precise units to measure time than hours. Hours are a smaller more precise unit of time than days. How do I measure time? Analog and Digital Clocks Five Minutes A.M. and P.M. What is the difference between and analog and digital clock? How can I measure time to the nearest five minutes? How many minutes are in an hour? How can we tell the difference between a.m. and p.m.? analog clock, digital clock hour hand, minute hand, hour, half-hour a.m., p.m., midnight, noon Go Math chapter 7, Investigations Unit 9, Clock and More Clock by Pat Hutchins, Grouchy Ladybug by Eric Carle

5 Unit 5: Geometry (20 days) Geometry consists of shapes and their attributes. How can I recognize and describe shapes? Shape Attributes 2-G.1 Identify Shapes Dividing Shapes 2-G.1 2-G.2 Divide circles and rectangles into equal parts 2-G.3 What makes a shape a shape? How do you recognize a shape? 2-G.1 2-G.1 Faces, lines, points, angles, vertices, sides How many squares can fit into a rectangle? 2-G.2 How do you divide a circle into two, three, and four equal parts? 2-G.3 Hexagon, pentagon, triangle, cubes, Equal, thirds, fourths, halves, whole quadrilaterals Halves, thirds, fourths, wholes, equal, shares, parts, identical Unit Assessment Go Math! Chapter 11, Investigations Units 1, 2

6 Unit 6: Length (20 days) The real world can be measured using customary and metric units using appropriate tools. Two systems of measurement, English standard and metric can compared. How can we use a variety of tools to compare and determine length? Estimating Lengths Comparing Lengths 2-MD.3, 2-MD.6 2-MD.4, 2-MD.5, 2-MD.6 Using appropriate measure tools (meter stick, yardstick, etc.) 2-MD.1, 2-MD.2, 2-MD.5, 2-MD.6 Using addition and subtraction to compare different lengths 2-MD.5 How can we measure the length of an object? 2-MD.1, 2-MD.2, 2-MD.5, 2-MD.6 How can we estimate the length of an object? 2-MD.3, 2-MD.6 How do you describe how two measurements relate? 2-MD.4, 2-MD.5, 2-MD.6 Can you add and subtract using the metric unit? 2-MD.5 meter, centimeter, inches, feet, width, comparing number line, rules, sums length, number line measure, length, yardstick, measuring tape, centimeters, meters, yards, rulers Unit Assessment Go Math! Chapters 8 & 9, Investigations Unit 9

7 Unit 7: Data (20 days) Bar graphs, charts, and tables help organize our data. How do we use graphs, charts, and tables to organize our data? Drawing graphs, tables, and charts 2-MD.9, 2-MD.10 How are tables, graphs and charts alike? How are they different? How does the type of data influence the choice of graph? How does a table differ from a graph? 2-MD.9, 2-MD.10 bar graph, pictograph, line plot, data, table Interpreting data from graphs, charts, and tables 2-MD.9, 2-MD.10 How do we use graphs, charts and table to organize date? How do we interpret the data that has been collected? 2-MD.9, 2-MD.10 put-together, take-apart, compare

8 Go Math! Chapter 10, Investigations 1 & 4 Unit 8: Multiplication (20 days) The sum in addition names the whole and subtraction names a missing part. Numbers can be regrouped and keep the same value. The sum in addition names the whole and subtraction names a missing part. Numbers can be regrouped and keep the same value. How do we solve word problems? Solving Addition and Subtraction Problems 2OA.1, 2OA.2 Counting Equal Groups of Objects 2OA.3, 2OA.4 How do we use adding and subtracting to solve word problems? 2OA.1, 2OA.2 What strategies do we use to add and subtract within 20? 2OA.1, 2OA.2 add, subtract, putting together, taking apart, comparing unknowns, equation, addend, sum, in all, altogether, many more, mental strategies, total How do we count groups of objects? How can I use what I know about repeated addition to solve multiplication problems? 2OA.3, 2OA.4 multiplication, rows, columns, arrays, even, odd, sum, addend, equal, equation, product, times (x), total

9 Go Math! Chapters 1 & 3, Investigations Units 1 & 8 Unit 9: Transition Unit- 2 nd to 3 rd Grade (20 days) How addition and multiplication are related. How can I use repeated addition and arrays to help solve multiplication problems? Arrays 3OA-3, 3NBT-2 Repeated Addition Multiply by 10 3OA-3, 3NBT-2 3OA-3, 3NBT-2 How do I use arrays to help me solve multiplication problems? How are addition and multiplication related? 3OA-3, 3NBT-2 How does place value help me multiply by 10 s? 3OA-3, 3NBT-2 3OA-3, 3NBT-2

10 Go Math! Getting Ready for 3 rd Grade, Investigations Unit 5/3 rd Grade