Page 143 - NUMINO TB_3A
P. 143
132_G3U14_G4U14_˙—» ¿º 2011.3.22 9:9 PM ˘ ` 132 PDF_In 2540DPI 150LPI T

Activity 3 Number of Dots in Mirrors

Learn how the number of dots changes according to the placement of the
mirror and the direction they are viewed.

mirror Number of dots: 2

mirror Number of dots: 4

1 . Count the number of dots on the paper and the mirror in the direction

of the arrow. Use a mirror to check your answer.

What you need: Mirror

a. b.

mirror mirror

Number of dots: Number of dots:

132
   138   139   140   141   142   143   144   145   146   147   148