Lesson 8.7 Fractions Objectives: To guide further understanding of fractional parts of a whole; and to introduce unit fraction notation. Math Journal 2, Pages 165, 168, 169, 170 Home Link Masters (page 238) Math Masters pages 226, 239 Minute Math pages 30, 49, and 102 My Reference Book, pages 144 and 145 1 dollar, 20 dimes, and 20 pennies per partnership 2 dice per partnership slate quarter-sheets of paper paper shapes: a large circle, square, triangle, and semicircle out of 8&1/2" X 11" paper for each child optional enrichment --Math Masters, page 239, several copies for each child. Cut each in half.

P N D Q P D N Q Mental Math and Reflexes Greater Than, Less Than, Equal review P N D Q P D N Q

Math Message and Math Journal 2, page 168 Look at the drinking glasses on journal page 168. Which glass is half full? Just because something is divided into two parts does not necessarily mean that each part is one-half of the whole.

Home Link 8.6 Follow-Up halves fourths How did you divide squares into halves and fourths? halves fourths

1 2 halves 1/2 1/2 1/2 the 1 tells how many of the equal part we are talking about the 2 tells into how many parts the whole has been divided Write 1/2 in each half of the half-full drinking glass on journal page 168.

1 4 fourths 1/4 1/4 the 1 tells how many of the equal part we are talking about the 4 tells into how many parts the whole has been divided A quarter is another way of saying one-fourth. A 25-cent coin is called a quarter because it is one-fourth of a dollar. On page 165, label the crackers with 1/2 and 1/4. Circle the rectangles on Journal page 168 that are divided into thirds.

One-Dollar Exchange Game Materials: 1 dollar, 20 dimes, and 20 pennies 1 Place-Value Mat per player 2 six-sided dice 1 sheet of paper labeled "Bank" Players 2 Directions (also on pages 144 and 145 of My Reference Book) 1. Place all of the money in the Bank. 2. Players take turns.

Write fractions on the equal parts. Which of these shapes show equal parts? Write fractions on the equal parts. Practice for Home Link 238

Writing and Reasoning: How do you know how many hundreds are in a number? Write, draw, or verbalize and answer.

Folding Paper Pizzas Fold your circle, square, triangle, and semi-circle into two equal parts. What was your strategy for making halves? Are all the pizza halves the same size?

Journal 2, page 169 Fractions

Math Boxes 8.7 Math Journal 2, page 170

Home Link 8.7 Math Masters, page 238

Making a Fraction Book Math Masters, page 239 Fraction Book Pages