First Grade Math

Lesson #1

Skill: Counts to 10 backward and forward, one to-one correspondence, identifies ordinal position,
compares numbers using words, groups objects into 10s

Lesson #2

Skill: Addition, subtraction, multiplication and division using manipulatives (arrays and equal sharing)

Lesson #3

Skill: Count by 10's from a given number

Lesson #4

Skill: Compose and decompose numbers.

Lesson #5

Skill: Mentally find 10 more or 10 less than a given 2-digit number

Lesson #6

Skill: Identifies coins and their values

Lesson #7

Skill: Representing numbers and fourths

Lesson #8

Skill: Counts by 1s, 2s, 5s forward and backward, counts on from any number, one-to-one correspondence, groups objects into 10s and 1s

Lesson #9

Skill: Addition and subtraction word problems

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Lesson #10

Skill: Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false

1st Grade Math Lesson 10: Understand the Meaning of the Equal Sign and Determine if Equations Involving Addition and Subtraction from Phalen Leadership Academies on Vimeo.

Lesson #11

Skill: Organize and interpret data with up to three choices ; ask and answer questions about the total number of data points

1st Grade Math Lesson 11 from Phalen Leadership Academies on Vimeo.

Lesson #12

Skill: Identify objects as two-dimensional or three-dimensional. Classify and sort two-dimensional and three-dimensional objects by shape, size, roundness and other attributes. Describe how two-dimensional shapes make up the faces of three-dimensional objects

1st Grade Math Lesson 12: Identify, Classify, and Sort Objects as 2-Dimensional or 3-Dimensional from Phalen Leadership Academies on Vimeo.

Lesson #13

Skill: Counts by 1s, 2s, 5s, 10s and counts on by 10s

1st Grade math Lesson 13 from Phalen Leadership Academies on Vimeo.

Lesson #14

Skill: Add numbers horizontally and vertically

1st Grade Math Lesson 14: Add Numbers Horizontally and Vertically from Phalen Leadership Academies on Vimeo.

Lesson #15

Skill: Add word problems using manipulatives

1st Grade Math Lesson 15: Add Word Problems Using Manipulatives from Phalen Leadership Academies on Vimeo.

Lesson #16

Skill: Solve addition and subtraction word problems

1st Grade Math Lesson 16: Solve Addition and Subtraction Word Problems from Phalen Leadership Academies on Vimeo.

Lesson #17

Skill: Distinguish between defining attributes of two- and three-dimensional shapes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size)