Lesson Plans - Grade 8 Math

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A number like this [1.2.2] is a state benchmark for math. Click it to link to the benchmarks.

1-2-2000
1. .................2. .................3. .................
4. .................5. .................6. .................

OBJECTIVE: Explore line symmetry and rotational symmetry(5-5, Pp192ff)[1.3.5] ACTIVITIES: Review Text - Work with Mira NOTES: PROBLEM OF THE WEEK DUE ON 1-8 HOMEWORK: Find three words that have horizontal or vertical symmetry.
[ Symmetry - Kaleidoscope Painter] [Symmetry Reflection Code]
[Rotational symmetry] [More Rotational Symmetry]
[Symmetry with Oriental Rugs]

1-3-2000
1. HW Sym Words.....2. .................3. .................
4. .................5. .................6. .................

OBJECTIVE: Draw an enlargement of a figure (dilation)(5-6A, P196) ACTIVITIES: Students will compose a dilation from a picture in two formats - one format is a regular grid; the other is a distorted grid. NOTES: HOMEWORK: Finish Dilations

1-4-2000
1. HW Dilations(2)..2. .................3. .................
4. .................5. .................6. .................

OBJECTIVE: Identify congruent and similar figures: (5-6, Pp197ff)[1.3.5] ACTIVITIES: Students will select a partner OR work independently to develop a project which will explain congurence and similarity. Required will be a poster AND a set of objects which work with the poster. Each Group/Student will make a presentation for tomorrow. NOTES: HOMEWORK: Presentation

1-5-2000
1. HW Congr/Simil...2. Problem/Week.....3. .................
4. .................5. .................6. .................

OBJECTIVE: Geometric Constructions[1.3.7] ACTIVITIES: Demo Constructions of: congruent line segments; congruent angles; prallel lines; segment bisector; angle bisector; perpendiculars and time permitting, circumscribed and inscribed circles. NOTES: Emphasize using the equipment and visible construction marks. HOMEWORK: Compile folder of annotated constructions. (same list as above)
[ Interactive constructions - A bit complicated but Interesting][Geometric Constructions - demos]

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Problem Of the Week - Due 1-5-2001

Unexplained answers receive NO credit!

Ideal 8-58

Use a Venn diagram to help solve this problem: Eighty-five percent of the eighth -graders at Hillsdale School play sports. Forty percent are in the school play. Of all the eighth-graders in these activities, sixty percent do both activities. What is the probability that an eighth-grader picked at random will either play sports or be in the school play? WRITE YOUR ANSWER in complete sentences; LABEL the Venn diagram.

Ideal 8-59

Use a protractor: If an analog (look it up) clock reads 12:05, what is the approximate angle formed by its hands? What if it reads 1:36? 4:57? Make up 3 more times and find the angles. Draw your table with a ruler. Draw your clock with a compass. Place the numbers using a protractor. Describe your process.