The video introduces the concept of number families and fact families, explaining how three numbers can form two addition and two subtraction sentences. It demonstrates using a house diagram to visualize these relationships. The video includes examples and a game to reinforce understanding, showing how to solve problems by identifying missing numbers in a fact family. The lesson concludes with a recap of the key concepts and encourages students to apply their knowledge in a game.

What is the result of adding 2 and 3 in the context of a number family?

• 4

• 5

• 6

• 7

In a fact family, what is the largest number's position in the house diagram?

• In the middle

• Outside the house

• At the top

• At the bottom

How many addition and subtraction sentences can be formed in a fact family?

• Four addition and four subtraction

• Three addition and three subtraction

• One addition and one subtraction

• Two addition and two subtraction

What is the purpose of using a house diagram in understanding fact families?

• To visualize the largest number

• To create more complex equations

• To solve multiplication problems

• To organize numbers

If you know two numbers in a fact family are 7 and 4, what is the missing number?

• 6

• 2

• 3

• 5

In the game with Sue, if she has 10 crayons and 6 are visible, how many are hidden?

• 5

• 4

• 3

• 2

What is the benefit of knowing one fact in a fact family?

• You can determine the other three facts

• You can ignore the other numbers

• You can solve unrelated problems

• You can guess the other numbers