Lesson 1 Estimation Explorations with Fractions

    • Let’s explore estimations with fractions.

Warm-up Which One Doesn’t Belong: Fractions

Which one doesn’t belong?

  1. rectangle. partitioned into 2 equal parts
  2. Triangle. partitioned into 2 equal parts. 1 parts shaded.
  3. Square. partitioned into 2 parts. smaller part shaded
  4. 2 squares. Each partitioned into 2 equal parts. 1 part shaded.

Activity 1 Estimation Exploration: Diagram

What fraction of the square is shaded?

square with a fraction shaded

Record an estimate that is:

too low

about right

too high

Activity 2 Estimation Exploration: Fraction Strip

What fraction of the strip is shaded?

rectangle with a fraction shaded.

Record an estimate that is:

too low

about right

too high

Activity 3 Estimation Exploration: Number Line

What number does the point represent?

a number line with the points 0, 1, and 2 labeled and an unlabeled point in between 1 and 2.

Record an estimate that is:

too low

about right

too high