NEW INFO
I forgot to teach one thing that might be on the test. So here is in a nutshell.
TRANSFORMATION LESSON - transformation is the changing of a shape in the coordinate plaen. There are four methods of transformation:
TRANSLATION - sliding a geometric shape to the left or right on the coordinate plane
If you've ever used powerpoint, it's like dragging a figure.
ROTATION - rotating or turning the figure
REFLECTION - flipping a figure over to get a mirror image.
DILATION - making a figure larger or smaller
For a 2.5 minute lesson click HERE
ANSWERS TO TEST
1. Simplify and write in descending order (that means first the x squared’s then the
x’s then the plain numbers)
14 + 3(x2 – 2) – 4(5 + 3x) – (x2 + 3) (First,
let’s use the distributive principle.)
14 + 3x2 – 6 – 20 -12x - x2 – 3 (Remember to distribute the negative sign)
Now combine like terms. How many x squared’s? (3-1=2)
So 2x2 … (now how many x’s?) -12x (and finally add the numbers 14-6-20-3= -15)
Final answer: 2x2
-12x -15
2. In right triangle ABC, BD is an altitude. AC=2” and
BC=1”. What’s the length of BD?
Use the Pythagorean theorem
to find the length of AB. 22 = 12 +AB2 Thus 4=1+ AB2 or 3 = AB2. So AB = √3
AC=2”
BC=1”
AB =
√ 3 "
Here’s a trick – let’s compute the area of the triangle two
different ways. A=½ bh. A= ½(AB)(BC) and A= ½(AC)(BD) The two ways of computing
the are should be equal, so ½(AB)(BC)= ½(AC)(BD)
or (multiplying both sides by 2)
(AB)(BC)=(AC)(BD). Let’s plug in the values.
(√3)(1) = 2 (BD)
Therefore BD= √3/2
3. Marc made the basket 16 times and missed the basket 9
times in the basketball game. What is the probability that he will make the
basket on his next try?
Probability is always expressed as a fraction between 0 and
1. The numerator will be the successes
and the denominator will be the total chances. He was successful 16 times out
of a total of 25 chances. So the probability is 16/25 (or 64%)
4. Sandy decorated her holiday tree with 10 red, 15 silver,
and 5 green lass ornaments. Her little brother, Ed, pulled the tree over and
only one ornament broke. What is the probability it was red?
Again, probability is always expressed as a fraction between
0 and 1. The numerator will be the
successes and the denominator will be the total chances.
So 10 are red of a total of 30 ornaments. The probability is 10/30 which should be reduced to 1/3.
5. There are six people in a race. There are trophies for
first, second and third place. How many different ways are there for handing
out those 3 trophies?
First place can go to any of the six racers. Second place
can only go to 5 since the first place person can’t also get the second place
trophy. Third place can go to 4 racers since there are two racers who already
got a trophy. So the total different ways is 6x5x4= 120.
SCORES and Team Assignments
Practice Group Test
Friendly Hills Gold 12
Friendly Hills Red 7
Heritage 12
FRIENDLY HILLS
Friendly Hills Gold 12
Friendly Hills Red 7
Heritage 12
FRIENDLY HILLS
| Grade | Name | P5b | M5r |
| 8 | Frank Sullivan | 4 | 46.0 |
| 5 | Oscar Halverson | 4 | 26.0 |
| 6 | Noelle Wang | 2 | 20.3 |
| 5 | Cyrus Martin Risch | 2 | 16.0 |
| 5 | Nick Wendt | 2 | 16.0 |
| 5 | Dain Dolan | 1 | 11.7 |
| 5 | Oslo Martin Risch | 3 | 11.0 |
| 8 | Naomi Spande | 4 | 9.3 |
| 6 | Lydia Houge | 4 | 8.0 |
| 5 | Aidan Dolan | 1 | 6.3 |
| 5 | Sophia Schomer | 2 | 6.0 |
| 5 | Nicholas Reisig | 0 | 3.3 |
| 6 | Aiden Lee | 2.0 | |
| 6 | Lily Pince | 1.3 | |
| 5 | Jake Lancaster | 1 | 1.0 |
| 6 | Emma Stevenson | 0 | 0.0 |
HERITAGE
| 8 | Aiden Jacobs | 2 | 34.7 |
| 8 | Abbey Dzurilla | 2 | 32.0 |
| 7 | Anthony Rocke | 8 | 30.0 |
| 7 | Cullen Sander | 2 | 16.0 |
| 7 | Steve Nickson | 4 | 14.7 |
| 7 | Ben Nickson | 14.3 | |
| 6 | Angel Hernandez | 0 | 2.7 |
| 5 | Nik Zeravica | 0 | 2.0 |
| 5 | Victoria Dzurilla | 0 | 2.0 |
