Gr.3 Mod 5 Lesson 1 Concept Development

Gr.3 Mod 5 Lesson 1 Concept Development

Specify and partition a whole into equal parts, identifying and counting unit fractions using concrete models.

Let's pretend you are now in subway. You and your best friend purchased one whole foot long sub.

Multiple Choice

In order to share this sub completely fairly between you and your friend (2 people), which image shows how to cut the sub?

Fill in the Blanks

How many equal parts have we split the sub into now?

2 equal parts. The fractional unit for 2 equal parts is halves.

Multiple Choice

What fraction of the whole sub is one of those parts?

• 1 fourth

• 1 third

• 1 half

• 1 sixth

Point to the halves and count them with me

Open Ended

How can we tell that both parts are equal?

Multiple Choice

Now lets say you are equally sharing a whole foot long sub with 2 friends (3 people), which image shows the way the sub should be cut?

The fractional unit for 3 equal parts is thirds. Point to the thirds and count them with me.

Multiple Choice

What fraction of this strip is shaded?

• 1 third

• 2 thirds

• 1 half

• 1 fourth

Multiple Choice

Now lets say you are equally sharing a sub with 3 of your best friends (4 people), which image shows how the sub should be cut?

The fractional unit for 4 equal parts is fourths. Point to the fourths and count them with me.

Multiple Choice

What fraction of this strip is shaded?

• 4 ones

• 1 fourth

• 2 fourths

• 1 third

• 2 thirds

Multiple Choice

Oh boy, now lets say you are equally sharing a foot long sub with 5 of your best friends (6 people). Which image shows how the sub should be cut?

The fractional unit for 6 equal parts is sixths. Point to the sixths and count them with me.

Multiple Choice

What fraction of this strip is shaded?

• 1 fifth

• 1 sixth

• 1 half

• 1 fourth

Multiple Choice

All these subs have made us thirsty. About what fraction of the cup is filled with juice?

• 1 third

• 1 fourth

• 1 half

• 1 sixth

Multiple Choice

About what fraction of this cup is filled with juice?

• 1 fourth

• 1 half

• 1 third

• 1 sixth

Multiple Choice

About what fraction of this cup is filled with juice?

• 1 fourth

• 1 half

• 1 third

• 1 sixth

All this food talk is probably making you hungry. Enjoy your whole virtual glass of juice and your whole virtual foot long while you work on your problem set.