SALTA 1st grade

1.OA.4

A ten frame has one row filled in. Draw the ten frame and write a number sentence that goes with your picture.

(DOK 2)

(DOK 1)

1.OA.5

Students solve the following while teacher observes. 14+ 3 = ____ 9 + 11= ______

When Austin solved his next problem on the number line, he was counting up. He started at a certain number, and he counted up 4. When he stopped, he was at a number less than 12.

What are three different numbers could he have started at?

Teacher Note: When solving addition and subtraction problems to 20, First Graders often use counting strategies, such as counting all, counting on, and counting back, before fully developing the essential strategy of using 10 as a benchmark number. Once students have developed counting strategies to solve addition and subtraction problems, it is very important to move students toward strategies that focus on composing the decomposing numbers using ten as a benchmark number, as discussed in 1.OA.6, particularly since counting becomes a hindrance when working with larger numbers. Circle the numbers in the box that can be added to make the number. 7 3 4 6

_____

_____

_____

Draw a number line to prove each choice. (DOK 3)

1.OA.6

Solve the following by decomposing to make ten. Write numbers or draw picture to show how you made 10.

8 + 5= 18 + 5= 9 + 7= (DOK 2)

9

1 3 5

9

6 2 3

(DOK 1)

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