# All Lessons

### Count Objects (1-5)

K.CC.4 Understand the relationship between numbers and quantities; connect counting to cardinality.

K.CC.5K.CC.5 Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1-20, count out that many objects.

### Count Objects (6-10)

K.CC.4 Understand the relationship between numbers and quantities; connect counting to cardinality.

K.CC.5K.CC.5 Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1-20, count out that many objects.

### Memorize Addition Facts

This Operations and Algebraic Thinking lesson practices memorizing addition facts. The lesson includes research-based strategies and strategic questions that prepare students for assessments. The goal of this lesson is rote memorization of the addition facts. As a result, this lesson is set up with Skill Development/Guided Practice pages, followed by Independent Practice for each number. Cumulative Periodic Review pages are at the end of the lesson. Flashcards are provided with this lesson.

### Memorize Subtraction Facts

This Operations and Algebraic Thinking lesson practices memorizing subtraction facts. The lesson includes research-based strategies and strategic questions that prepare students for assessments. The goal of this lesson is rote memorization of the subtraction facts. As a result, this lesson is set up with Skill Development/Guided Practice pages, followed by Independent Practice for each number. Cumulative Periodic Review pages are at the end of the lesson. Flashcards are provided with this lesson.

### Show the Meaning of Addition

This number sense lesson focuses on showing the meaning of adding. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students count and write the number of objects in each group, and put them together to show the meaning of adding. Then, they write the total amount and read the problem aloud. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Decompose Numbers 11 to 19

This Numbers and Operations in Base Ten lesson focuses on decomposing numbers 11 to 19. As prerequisites, students should be able to write numbers from 0 to 20 (K.CC.3), and understand the relationship between numbers and quantities (K.CC.4). The lesson includes research-based strategies and strategic questions that prepare students for assessments.