Anticipation/Reaction Guide Directions: In the column labeled BEFORE, place a T if you believe the statement to be true. Place an F if you believe it is not true. After learning more about the topic, place either a T or F in the AFTER column. Show how you know in the last column. BEFORE STATEMENTS AFTER PROOF Use the back to show your proof 4. When I double the dimensions of a box the volume doubles. 5. A ll angles between 0o and 90o are acute angles.