3.1.1 One Piece of One Part

​One Piece of One Part

3.1.1 Guided Instruction

Open Ended

What do you notice? What do you wonder?

Poll

What kind of pasta looks best to you?

Draw

At a family dinner a pan of macaroni and cheese is $$\frac{1}{2}$$ full.

Lin eats $$\frac{1}{3}$$ of the remaining macaroni.

Draw a diagram to represent the situation.

Open Ended

How do these diagrams represent $$\frac{1}{4}\ of\ \frac{1}{2}$$ of a pan of macaroni and cheese?

Draw

How much is $$\frac{1}{4}\times\frac{1}{2}$$ ?

Multiple Choice

A pan of macaroni and cheese is $$\frac{1}{2}$$ full.

Mai eats $$\frac{1}{5}$$ of the remaining macaroni and cheese in the pan.

How much of the whole pan did Mai eat?

• $$\frac{1}{7}$$

• $$\frac{2}{5}$$

• $$\frac{2}{10}$$

• $$\frac{1}{10}$$