Design Challenges

Can we build a roller coaster with a loop?

Brain Teasers

Marshmallow and Toothpick Challenge

Lowering the Centre of Gravity/Centre of Mass

February 2, 2016

Finding the Centre of Gravity

Friday, April 24, 2015

Construct the object in the below image using Polydron connectors … Thursday, Oct. 16, 2014

Construct a polygon using all of the equilateral triangle and Square Polydron connectors … in 12 minutes or less!

Wednesday, Oct. 15, 2014

Construct all FIVE shapes in the image below using Polydron connectors … in under 10 minutes! Thursday, Oct. 9, 2014

Construct the object in the below image using Polydron connectors … Wednesday, Oct. 8, 2014

Construct the object on the top right using ‘Polydron connectors … Tuesday, Oct. 7, 2014

Construct this object using polydron shapes … *****************************

Thursday, Feb. 6, 2014 Reminder: Expressing Fractions as Decimals

• During this lesson you will learn how to use division to express fractions as decimals.

New Terms: Terminating Decimal and Repeating Decimal and Bar Notation.

GCF and LCM Prime Factorization

Review

1. Which of the following is a composite number?

a. 13 b. 18 c. 17 d. 19

2. Identify all the prime numbers between 40 and 50.

3. What is the GCF of the numbers below?

720 = 2 x 2 x 2 x 2x 3 x 3 x 5 2100 = 2 x 2 x 3 x 5 x 5 x 7

4. What is the missing number in the below prime factorization: 420 = 2 x 2 x        x 5 x 7

5. What is the LCM of the numbers below? 60 = 2 x 2 x 3 x 5 90 = 2 x 3 x 3 x 5

6.  A number in Prime Factorization is 2 x 2 x 2 x 3 x 5 x 5 x 7 x 7 x 7. Now write the number in Standard form.

Thursday, January 30, 2014

Theoretical Probability and Experimental Probability for the Game of Skunk  Experimental probability: The experimental probability may be written asa fraction, decimal,or percent. Experimental probability is also called relative frequency.

Problem Solving Question?

Theoretical Probability of rolling doubles in skunk =

Thursday, January 16, 2014

Calculating the Volume and Surface Area of a Rectangular Prism

Geometry and Measurement: Skills You’ll Need: Surface Area: The surface area of a rectangular prism is the sum of the areas of all its faces. Since opposite faces are congruent, this formula can be used to find the surface area:

SA= 2 x area of base + 2 x area of side face+ 2 x area of front face.

*********************** Volume: The volume of a rectangular prism is the space occupied by the prism. One formula for the volume is:

V = area of base x height

How to Calculate the Surface Area of a Rectangular Prism

How to Find the Volume of a Rectangular Prism

Problem Solving Question of the Day

Problem Solving Success Criteria:

• Listen closely and record the problem solving question after watching video twice.
• Assume one of three roles in group: recorder, materials organizer and presenter.
• All group members are engaged and assist in solution of problem solving question.
• Your group’s noise volume does not distract others (Mr. Wass does not have to ask you to quiet down).
• Show your work so that it is easily understood by anyone familiar or unfamiliar with calculating surface area.
• Include a “To Determine” and “Therefore statement.”
• Practice and then clearly present your solution.