Exploring Addition and Subtraction in Grade 2 Math

What symbols are introduced in the lesson to represent mathematical concepts?

• Plus and minus

• Greater than and less than

• Equal and not equal

• Multiply and divide

Tags

CCSS.1.NBT.B.3

In the 'same but different' routine, what total number of blocks do both pictures have?

• Six

• Five

• Seven

• Four

Tags

CCSS.1.OA.A.1

How many green blocks are there in the left picture compared to the right?

• None

• Three on the left, two on the right

• Two on the left, three on the right

• Four on each side

Tags

CCSS.1.NBT.B.3

What does a balanced scale represent in mathematical terms?

• Subtraction

• Inequality

• Division

• Equality

Tags

CCSS.7.NS.A.1B

What equation represents the balance with four yellow and five red blocks on one side and nine blocks on the other?

• All of the above

• 5 + 4 = 9

• 9 = 4 + 5

• 4 + 5 = 9

Tags

CCSS.1.OA.A.1

If a balance has 8 and 7 on one side and 2 and 10 on the other, is it equal?

• Yes

• No

• Cannot be determined

• Sometimes

Tags

CCSS.1.OA.B.3

What does an equal sign crossed out represent?

• Multiplication

• Not equal

• Equal

• Addition

If the left side of a balance is heavier, what does it indicate about the equation?

• The sides are equal

• The equation is balanced

• The left side is less than the right

• The left side is greater than the right

What should you do if you feel confident about the math concepts taught today?

• Ignore the concepts

• Ask for help

• Give a thumbs up

• Give a thumbs down

How can you show that you understood today's math lesson?

• By listening only

• By leaving the class

• By writing down equations

• By giving a thumbs up if confident

Tags

CCSS.1.OA.A.1