Understanding Basic Addition Concepts

In this lesson, students learn to add numbers by separating them into tens and ones. The teacher uses examples with two students, Hank and Bruce, to illustrate the concept. The lesson includes guided practice and independent exercises to reinforce the learning goal of adding ones and ones, and tens and tens.

What was the initial confusion between Hank and Bruce's number sentences?

• They thought their answers would be the same.

• They both were adding tens.

• They both were adding ones.

• They both had the same numbers.

What is the learning goal of this lesson?

• Adding ones and ones, tens and tens.

• Multiplying ones and tens.

• Subtracting ones and tens.

• Dividing ones and tens.

In Hank's problem, what did he add to the number 13?

• Three ones

• Two tens

• Two ones

• Three tens

What was Bruce's mistake in his problem?

• He added ones instead of tens.

• He added tens instead of ones.

• He subtracted instead of adding.

• He multiplied instead of adding.

How do you separate the number 15 into tens and ones?

• 15 tens

• 5 tens and 1 one

• 15 ones

• 1 ten and 5 ones

What is the sum of the ones in the problem 15 + 4?

• 10

• 9

• 5

• 19

What is the final answer for 15 + 4?

• 24

• 20

• 15

• 19

In the problem 17 + 3, what new number is formed by adding the ones?

• 10

• 20

• 30

• 40

What is the final answer for 17 + 3?

• 30

• 23

• 20

• 17

How do you separate the number 11 into tens and ones?

• 11 tens

• 1 ten and 1 one

• 10 tens and 1 one

• 11 ones