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Building sets of 11 and 12

In this lesson, one of a seven-part unit from Illuminations titled “Let's Count to 20,” students explore sets of 11 and 12. They use bean sticks, connecting cubes, and ten frames to construct sets of 11 and 12, and then record and compare them. (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Building sets of 13 and 14

In this lesson, one of a seven-part unit from Illuminations titled “Let's Count to 20,” students explore sets of 13 and 14. They construct and identify sets of 13 and size 14. They then compare sets to sets of size 13 and size 14, record the... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Building sets of 15 and 16

In this lesson, one of a seven-part unit from Illuminations titled “Let's Count to 20,” students explore the numbers 15 and 16. They make and decompose sets of 15 and 16, write the numerals 15 and 16, and compare other sets to sets of 15 and... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Building sets of 17 and 18

In this lesson, one of a seven-part unit from Illuminations titled “Let's Count to 20,” students explore sets of up to 18. They construct sets up to 18, write the numerals 17 and 18, and model 17 and 18 with bean sticks, cubes, and ten frames. (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Building sets of 19 and 20

In this lesson, one of a seven-part unit from Illuminations titled “Let's Count to 20,” students explore sets of 19 and 20. They count up to 20, construct and decompose sets up to 20, and record the decompositions. (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Exploring sets through math-related book pairs

This ReadWriteThink lesson integrates reading, writing, viewing, and visually representing mathematical ideas while simultaneously strengthening home-school communication. The two math-related books used give real-world contexts to the strategy of grouping... (Learn more)

Format: lesson plan (grade K–2 English Language Arts and Mathematics)

Provided by: ReadWriteThink

Pyramid power

In this lesson, the third of a six-part unit from Illuminations titled “Food Pyramid Power,” students make sets of a given number, explore relationships between numbers, and write numbers that name how many elements are in a group. They make... (Learn more)

Format: lesson plan (grade K–2 Healthful Living and Mathematics)

Provided by: Illuminations

Sorting foods

In this lesson, the first of a six-part unit from Illuminations titled “Food Pyramid Power,” students visit a website to play a game related to the food pyramid and sort foods using the categories of the food pyramid. They also create sets up... (Learn more)

Format: lesson plan (grade K–2 Healthful Living and Mathematics)

Provided by: Illuminations