Counting and Basic Operations Problems

Mr. Montgomery introduces lesson 1-7, focusing on addition by finding missing parts. The lesson involves using visual aids like drawings and colors to solve problems. Students practice with examples, using both drawings and number lines, and are encouraged to find methods that work best for them. The lesson concludes with independent practice, reinforcing the concept of addition and problem-solving.

What is the main topic of today's lesson?

• Division with missing parts

• Subtraction with missing parts

• Addition with missing parts

• Multiplication with missing parts

What page of the book are we on for this lesson?

• Page 29

• Page 20

• Page 39

• Page 10

In the example with train cars, how many train cars were there initially?

• Nine

• Seven

• Five

• Three

What is the total number of train cars after more join?

• Nine

• Eleven

• Five

• Seven

How many train cars joined the initial set?

• Two

• Five

• Three

• Four

In the goldfish problem, how many fish does Bobby start with?

• Two

• Four

• Six

• Eight

What is the total number of fish Bobby has after buying more?

• Eight

• Seven

• Six

• Five

How many more fish does Bobby buy?

• Five

• Two

• Four

• Three

What tool can be used to help solve addition problems with missing parts?

• Calculator

• Compass

• Ruler

• Number line

In the sticker problem, how many stickers does Mary start with?

• Two

• Four

• Six

• Eight