## Monday, January 20, 2015 - No School

## Tuesday, January 20, 2015 - I can find the area of a composite figure involving parallelograms and triangles. I can find the area of a parallelogram and triangle when given the area and one dimension.

**Bell Work**- Review Unit 1 - decimal operations, dividing with whole numbers, factors and multiples, rewriting expressions using the GCF and the distributive property, and dividing with fractions. Using the Performance Coach Book, solve the following problems: (1) p72, #1, (2) p80, #1 (3) p97, #2 (4) p63, #1. During Bell Work, students received individual feedback on work resubmitted last week. Please continue to correct work for additional credit.

**Classwork**

(1) 1st and 2nd period - Completed "Rectangle Wrap-Around" and "What's My Area" using a metric ruler and measuring with millimeters.

(2) All classes - Checked/completed "Area of Rectangles and Triangles" using formulas A = bh for parallelograms and A = 1/2 bh for triangles.

**Homework**- Complete "What is the best way to catch a squirrel?" #1-16 showing organized work on a separate paper. Also, finish "Area of Rectangles and Triangles," #12-14, from class today.

## Wednesday, January 21, 2015 - I can find the area of a trapezoid by decomposing it into two triangles or a rectangle and one or two triangles.

**Bell Work - Review Unit 1 - dividing with whole numbers, decimal operations, factors/multiples, dividing with fractions.**

**Classwork**

(1) Questions answered from "What's the best way to catch a squirrel?". Solutions can be found on task sheet except for #15 and 16. These questions were more thoroughly discussed - substitute variables with values given. Use inverse operations to solve for unknown variable (measurement).

(2) Decompose trapezoids into (a) two triangles sharing the same height or (b) a rectangle and one or two triangles. Using desktops and dry-erase markers, students drew trapezoids and found their areas. The following PowerPoint was used for practice.

trapezoid_area.pptx | |

File Size: | 291 kb |

File Type: | pptx |

**Homework**- Complete #1-3 of "Area of Trapezoids", Milliken p26. Create a 2 x 8 grid to show your organized work.

## Thursday, January 22, 2015 - I can find the area of a trapezoid by decomposing the shape into triangles and rectangles.

Bell Work - Review division with whole numbers, decimal operations, factors and multiples, and dividing with fractions.

**Classwork**

(1) Completed foldable notes for finding the area of trapezoids using three methods: (a) decomposing into two triangles, (b) decomposing into one rectangle and one or two triangles, (c) formula A = 1/2 h (base 1 + base 2).

(2) Shared solutions for #1-3 Area of Trapezoids. Some classes had time to highlight the bases and height (which measurements to use) of each trapezoid #1-6. Solutions for #1-3 are posted above under Wednesday's blog.

**Homework**- Correct #1-3 if necessary and complete #4-6 of Area of Trapezoids - posted above with Wednesday.

**Friday, January 23, 2015 - I can find the area of trapezoids by decomposing them into two triangles or a rectangle and triangle(s).**

**Bell Work Quiz**- Unit 1 Review - dividing with whole numbers, operations with decimals, applying factors and multiples, GCF and the distributive property, and dividing with fractions.

**Classwork**

(1) Finish foldable notes for finding the area of trapezoids. The formula was revisited in 1st and 2nd period

(2) Check work for #4-6 "Area of Trapezoids."

(3) Area given for remaining trapezoids #7-15. Guided practice and peer teaching provided to find the area of trapezoids.

(4) Area Quiz - parallelograms, triangles, and trapezoids.

(3) Area given for remaining trapezoids #7-15. Guided practice and peer teaching provided to find the area of trapezoids.

(4) Area Quiz - parallelograms, triangles, and trapezoids.

area_of_trapezoids_milliken_26_key.pdf | |

File Size: | 294 kb |

File Type: |

**Homework**- None. Area and inequalities tests postponed until next week. Enjoy your weekend!