Floats and Anchors --> Counters

In Floats and Anchors, you could ALWAYS see all the floats and anchors.

• Yes

• No - some might be hidden, but those ALWAYS come in pairs (so they equal 0 ! )

Think about Floats and Anchors. Are + counters floats or anchors?

• Floats

• Anchors

Tags

CCSS.2.OA.A.1

How many "floats" do you start with here?

• 5

• 2

Tags

CCSS.1.OA.A.1

How many "floats" do you add?

• 5

• 2

Tags

CCSS.1.OA.A.1

What is the value of 5 + 2

• 3

• 7

Tags

CCSS.2.OA.A.1

Does the - counter stand for a float or an anchor?

• Float

• Anchor

Tags

CCSS.7.NS.A.1C

So here, you start with...

• 6 floats

• 6 anchors

• 1 float

• 1 anchor

Tags

CCSS.2.OA.A.1

In this problem, you are...

• Taking away 1 anchor

• Adding 1 anchor

• Taking away 6 floats

• Adding 6 floats

Tags

CCSS.2.OA.A.1

Will your submarine rise or fall?

• Rise, because you are taking away an anchor

• Fall, because you are adding an anchor

Tags

CCSS.7.NS.A.1C

Where will the boat rise to? 6 - (-1)

• 5

• 7

• -5

Tags

CCSS.7.NS.A.1B