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.
Look up the meaning of math terms [Here ]
[and here!]4-30-20011. .................2. .................3. ................. 4. .................5. .................6. .................
OBJECTIVE: Graph dilations on a coordinate plane(9-8,
Pp361ff)[1.3.2] ACTIVITIES: NOTES: Review process of text a)
coordinate plots points b) multiply/divide coordinates by the
scale factor. c) re-plot. Follow text models HOMEWORK: Create
a seven-sided closed figure in the 10 by 10 center grid. Dilate
by a scale factor of 3 and a scale factor of 1.75 (end product
should have 3 shapes.) Bring a ruler 
and 
protractor
5-1-20011. HW Dilation......2. HW Ruler/Prtrctr.3. Measures Drill... 4. .................5. .................6. .................
OBJECTIVE: Find the perimeter of 2-D shapes by
measuring.[1.2.2][1.2.4] ACTIVITIES: Measure the objects to
the nearest cm or 1/16 of an inch. Determine the perimeter
using the generic perimeter formula. NOTES: Record the
dimensions for #8 for homework. HOMEWORK: Make a scale drawing
of number 8 from the day's work. Side nn is to equal 3 inches
or 7.6cm on the scale drawing. Be sure to include all of the
calculations on the paper. NO WORK = NO CREDIT!
[Proportion Problem Solver]
5-2-2001
OBJECTIVE: Discover ratios among the sides of a right
triangle(9-9A, P364)[1.2.2][1.3.4] ACTIVITIES:[Distribute
Progress Report #13] As per text. Each student will make a
right triangle and post for others to measure/record. Each
person will record 10 triangles as per directions. (Blue dots
and 1-3) NOTES: HOMEWORK: Summary paragraph. on the
activity, i.e., What did you observe. Include some facts.
[Interactive protractor activity] [Interactive protractor reading]
5-3-2001
OBJECTIVE:Find the tangent of an angle and the angle from the
tangent(9-9, Pp365)[1.2.2][1.3.4] ACTIVITIES: Major emphasis
is the idea of RATIO and the secondary portion is the
properties of right triangles. Demo, model and do the problems
in the text on 365ff. Introduce the ASTROLABE project. (cf.
Thematics) NOTES: HOMEWORK: P606, 9-9 all
[Enter angle - get tangent] [Six trig functions interactive]
5-4-2001
OBJECTIVE: Find the sine and cosine of an angle and find the
measure of an angle from the sine and the cosine(9-10,
Pp368ff)[1.2.2][1.3.4] ACTIVITIES: Continuation of the
exploration of rations - primarily informational. Model/demo
text materials. NOTES: HOMEWORK: P606(9-10) all
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Problem Of the Week - Due May 7, 2001
[How to write a solution]
[Written problem scoring guide]Unexplained answers receive NO credit!
A certain trail mix contains fruit to nuts in the ratio 2:3. When 3 people were given a sample of this trail mix, they consumed 3/4 cup of nuts. How many cups of fruit would be needed if 10 people were going to have this same trail mix?
Mr. LeMieux's note: This is obviously a constructed "math book" kind of problem. Nobody would do this in this manner in life. The purpose is to see how well the student can read and sort out the ratios needed to solve the problem and deal with the 3 variables - the poeple, the nuts and the fruit!
[standard guidelines]