Unit 3, Lesson 6
Story Problems within 10
Grade 1
Warm-up
What do you notice?
What do you wonder?
Han plays Shake and Spill.
He has some counters in his cup.
Then he puts more counters in his cup.
What do you wonder?
Han plays Shake and Spill.
He has some counters in his cup.
Then he puts more counters in his cup.
Activity 1
Han plays Shake and Spill.
He has some counters in his cup.
Then he puts 3 more counters in his cup.
Now he has 10 counters in his cup.
How many counters did he start with?
Show your thinking using drawings, numbers, or words.
Equation:
Activity 2
Students play Shake and Spill.
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Noah starts with 10 counters in a cup.
4 of the counters fall out.
How many counters are still in the cup?
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Kiran has 4 counters in a cup.
He puts more counters in.
Now he has 7 counters in his cup.
How many more counters did Kiran put in his cup?
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Clare has some counters in a cup.
She puts 3 more counters in.
Now she has 9 counters in her cup.
How many counters were in her cup before she added more?
Student Section Summary
We practiced adding within 10.
We counted on.
We added in any order.
is the same amount as .
We learned that when expressions have the same value, you can show that with an equal sign.
We learned that we can use addition to find the difference between 2 numbers.
Since I know , then I know .