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Elementary

Grade 2

11 chapters45 lessons
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1

Fluency within 20, odd and even

3 lessons

Students add and subtract within 20 from memory, skip count, and test whether a number is even by pairing.

Review first: Making ten and bridging through ten Doubles and near doubles Fact families
1.1Adding and subtracting within 20 from memory
1.2Counting by twos, fives, threes and fours
1.3Even and odd numbers
2

Place value to 1,000

7 lessons

Students read, write and compare three-digit numbers as hundreds, tens and ones.

Review first: Tens and ones Comparing numbers and the symbols >, < and =
2.1Base ten blocks and trading ten for one
2.2Reading and writing numbers to 1,000
2.3Counting past one hundred
2.4Counting by hundreds
2.5The place value chart
2.6Expanded form
2.7Comparing and ordering whole numbers
3

Adding and subtracting within 100

5 lessons

Students add and subtract two-digit numbers on a number line and by place value, regrouping when a place runs over.

Review first: Adding two-digit numbers without regrouping
3.1Number lines with different scales
3.2Adding on an open number line
3.3Regrouping in addition
3.4Subtracting two-digit numbers without regrouping
3.5Regrouping in subtraction
4

Adding and subtracting within 1,000

3 lessons

Students add and subtract three-digit numbers by place value and explain why their method works.

Review first: Expanded form Regrouping in addition Regrouping in subtraction
4.1The partial sums method
4.2Subtracting three-digit numbers by place value, including across zero
4.3Ten more and ten lessretaught
5

One- and two-step story problems

4 lessons

Students solve add and subtract stories of every type, including comparisons and two steps, with drawings and equations.

Review first: Problems with the start, change or result missing Subtraction as the difference
5.1Problems with the starting amount missing
5.2How many more and how many fewer
5.3Bar models for story problems
5.4Two-step addition and subtraction problems
6

Measuring and estimating length

6 lessons

Students measure with rulers in inches, feet, centimeters and meters, estimate lengths, and show lengths on a number line.

Review first: Measuring length
6.1Measuring tools and reading their scales
6.2Customary length units
6.3Metric length units
6.4Smaller units give bigger counts
6.5Benchmarks, estimating and choosing a unit
6.6Length on a number line
7

Time and money

5 lessons

Students tell time to five minutes and solve problems with dollars and coins.

Review first: Telling time
7.1Telling time to the nearest five minutes
7.2Morning and afternoon on a twelve hour clock
7.3Money
7.4Counting mixed coins
7.5Story problems with dollars and cents
8

Picture graphs, bar graphs and line plots

5 lessons

Students draw and read picture graphs, bar graphs and line plots and answer put-together, take-apart and compare questions about them.

Review first: Data tables, tallies and frequency tables
8.1Picture graphs and their key
8.2Reading a bar graph
8.3Making bar graphs
8.4Reading dot plots: clusters, gaps and peaks
8.5Making a dot plot
9

Equal groups and arrays: toward multiplication

2 lessons

Students count equal groups and arrays by repeated addition, the first step toward multiplication.

Review first: Counting by twos, fives, threes and fours
9.1What multiplication means
9.2Arrays: rows and columns of objects
10

Shapes and their attributes

3 lessons

Students name triangles, quadrilaterals, pentagons, hexagons and cubes by their sides, angles and faces, and split rectangles into rows and columns.

Review first: Sides, corners and sorting shapes Naming and describing solid shapes
10.1Triangles, quadrilaterals, pentagons and hexagons from their sides and angles
10.2Faces, edges and vertices
10.3Splitting a rectangle into rows and columns of squares
11

Halves, thirds and fourths

2 lessons

Students cut circles and rectangles into two, three and four equal shares and see that equal shares need not be the same shape.

11.1Equal shares that look different
11.2Equal shares and naming the wholeretaught