How to Subtract when regrouping with zeros...Finding Area and Perimeter
Using two different colors helped us see the different ways we can decompose rectilinear shapes to find the area.
Just a few simple rules for the mathematicians before we could start math games for "Fun Friday"
Rule number 1: No arguing! We must synergize at all times. Ruler number 2: No flying pattern blocks. Its all fun and games until someone gets hit with a shooting rhombus. Rule number 3: Think like a mathematician, act like a third grader. Rule number 4: Let's not forget the most important lesson of the week: "Miss Lena, we ARE kids!!!" (silly us, we always seem to forget that part!) Finding the area of rectilinear shapes using the distributive property in color!Today, in class I was so impressed with two of my superstar math teams! They worked together to solve the area and perimeter of various rectilinear shapes, using highlighters to see math in a whole new way! Synergizing! "Together is better."3.MD.51. Using 1 inch by 1 inch white grid paper, cut out equal square units.
2. Using black construction paper, cut out black square units that are the same size for the hat. 3. Arrange your square units to create a snowman. 4. Glue your square units to your colored construction paper and add the eyes, the nose, the arms and the mouth. 5. Find the area of your snowman's snow, and label it on your paper. Snow= 30 square units 6. Find the area of your snowman's hat and label it. Hat= 6 square units 7. Finally, find the total area of your snowman. area of the hat + area of the snow = total area of your snowman. *Be sure to label it on your paper and sign your name.* |
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March 2020
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