Week of Feb. 9th

This week is not going to be a very fun week.  Monday we will be finishing our test from Friday. Tuesday and Wednesday students will be taking a writing benchmark test. After testing on Tuesday students will go to 1st, 2nd, and 3rd periods. Wednesday students will go to 4th, 5th, and 6th periods. During math class on Tuesday and Wednesday we will be playing Sumdog. After testing it will be a nice break. Thursday we will be looking at unit conversions (metric to metric, customary to customary, and metric to customary, customary to metric). Friday we will be taking our unit six common assessment over probability.

Remember, President's Day is Monday, Feb. 16th. This day is a student holiday.

Circumference and Area of Circles

Today we completed our lesson over circumference and area of circles. Circumference of a circle is the distance around the circle. To find circumference you multiple the diameter by pi or 3.14. Area of a circle is the space inside a circle. You find the area of the circle by multiplying pi by the radius squared or radius times radius.

Example:

Week of Feb. 2nd

Last week we began studying perimeter, circumference, and area.  We began by looking at the new 7th grade STAAR formula chart.  There have been some very interesting changes.  Students need to be able to use this page as a tool.  It can be used for measurement (area, volume, and surface area) and also ratio and proportion with unit conversions.

This week we will continue our lesson from Thursday over circumference and area of circles.  This seems to be a big topic this year so we will be hitting it hard.  Tuesday and Wednesday we will be looking at irregular or composite figures.  This is where you may have to find the area of several shapes and add them together.  Thursday we will work on a test review for a test over area on Friday.

Bonus Question of the week:
Copy the question, solve and turn it in by Friday, Feb. 6th.

A pizza of diameter 16 inches has an area large enough to serve 4 people. What is the diameter of a pizza with an area large enough to serve 12 people? Express your answer as a decimal to the nearest tenth.