KA Early Math (Kindergarten - Second Grade)

Kindergarten-Second Grade

Unit 1: Counting

Numbers 0 to 120

Example: Count from 1 to 20. Write down the numbers.
Challenge: What comes after 89? What are two numbers before 56?

Counting objects

Example: There are 5 apples in one basket and 7 apples in another. How many apples are there in total?

Comparing small numbers

Example: Which is greater, 8 or 5? Which is smaller, 2 or 4?

Unit 2: Addition and subtraction intro

Unit mastery: 100%

What is addition?

Example: If you have 3 candies and you get 2 more, how many candies do you have?
3 + 2 = 5

What is subtraction?

Example: You have 5 cookies, and you eat 3. How many are left?
5 - 3 = 2

Addition and subtraction intro

Example: What does 1+1 mean, and what does 2-1 mean?

Making small numbers

Example: Break 5 into smaller numbers. (e.g., 5 = 2 + 3 or 1 + 4).

Making 10

Example: Fill in the blank: 6 + ___ = 10.

Put together, take apart

Example: Combine 4 and 3 to make 7. Then split 7 into 5 and 2.

Relate addition and subtraction

Example: If 8+2 = 10, what is 10−2?

Addition and subtraction word problems

Example: Sarah has 5 pencils. She gives away 3. How many pencils does she have now?

Unit 3: Place value (tens and hundreds)

Unit mastery: 98%

Teens

Example: Break apart 13 into tens and ones.
13 = 10 + 3

Place value (tens and hundreds)

Example: All numbers have a place value. For instance, the number 14 has a ten (represented by the 1) and a 4.

Tens

Example: Write 40 as 4×10
Challenge: How many tens are in 70?

Comparing 2-digit numbers

Example: Compare 45 and 37 using >, <, or = 45 > 37

Hundreds

Example: Break apart 120 into hundreds, tens, and ones.
120 = 1 100 + 2 10 + 0 * 1

Comparing three-digit numbers

Example: Compare 245 and 321 using >, <, or =
245 < 321

Unit 4: Addition and subtraction within 20

Unit mastery: 100%

Addition within 20

Example: 9 + 7 = ?
9 + 7 = 16

Subtraction within 20

Example: 15 - 8 = ?
15 - 8 = 7

Equal sign

Example: Is 7 + 3 = 10 true or false?
True

Addition and subtraction within 20

Example: 20 - 18 = ?
20 - 18 = 2

Missing number within 20

Example: 12 - _ = 5. What goes in the blank?
7 goes in the blank.

Word problems within 20

Example: John has 18 candies. He eats 7. How many are left?

Word problems with "more" and "fewer"

Example: Tom has 10 marbles. Mary has 6 more than Tom. How many does Mary have?

Repeated addition

Example: Add 4 + 4 + 4
4 + 4 + 4 = 4 * 3 = 12

Unit 5: Addition and subtraction within 100

Unit mastery: 91%

Skip-counting

Example: 44 + 10 = 54

Addition and subtraction within 100

Example: 48 + 22 = 70

Adding 1s and 10s

Example: 55 + 11 = 66

Subtracting 1s and 10s

Example: 72 - 10 = 62

Intro to addition with 2-digit numbers

Example: 34 + 21 = ?
34 + 21 = 55

Intro to subtraction with 2-digit numbers

Example: 76 - 32 = ?
76 - 32 = 44

Strategies for adding and subtracting within 100

Example: Use breaking apart (48 + 25 = (40 + 20) + (8 + 5) = 73

Addition within 100

Example: 42 + 21 = 63

Subtraction within 100

Example: 62 - 21 = 43

Word problems within 100

Example: Lisa has 60 apples. She sells 25. How many are left?
60 - 25 = 35

Word problems with "more" and "fewer" (within 100)

Example: Max has 45 stickers. Kim has 15 more than Max. How many does Kim have?
45 - 15 = 30

Addition and subtraction missing value problems

Example: I had 10 apples. Then, I sold 6. How much do I have now?
10 - 6 = 4

Unit 6: Addition and subtraction within 1000

Unit mastery: 98%

Skip counting by 100s

Example: Count by 100s from 100 to 1000: 100, 200, 300

Addition and subtraction within 1000

Example: 326 + 54 = 380

Adding 1s, 10s, and 100s

Example: 326 + 10 = 336

Subtracting 1s, 10s, and 100s

Example: 574 - 100 = 474

Strategies for adding 2- and 3-digit numbers

Example: 146 + 278 = (100 + 200) + (40 + 70) + (6 + 8) = 424

Adding up to four 2-digit numbers

Example: 23 + 34 + 45 + 56 = 158

Unit 7: Measurement and data

Unit mastery: 99%

Length and size

Example: Which is longer: 3 feet or 2 meters?

Measurement and data

Example: Measure the length of a pen using a ruler.

Measuring length

Example: Measure the length of a pencil using a ruler.

Comparing and estimating length

Example: Estimate the height of a door in feet. Compare to its actual height.

Length word problems

Example: If a rope is 10 meters and you cut off 3 meters, how long is the rope?

Picture graphs

Example: Create a graph to show how many apples, oranges, and bananas you have.

Bar graphs

Example: Create a bar graph showing students’ favorite colors.

Line plots

Example: Plot how many books each student has read on a line graph.

Time

Example: What time will it be 2 hours after 3:15 PM?

Money

Example: You have $2.35. How much more do you need to buy an item that costs $5.00?
5.00 - 2.35 = 3.65

Unit 8: Geometry

Unit mastery: 100%

Basic shapes

Example: Identify a triangle, square, and rectangle in a diagram.

Properties of shapes

Example: How many sides and corners does a hexagon have?

Composing shapes

Example: Combine two triangles to make a square.