Thursday, February 5, 2015

Helpful Site - Divisibility Rules


Click here to link to a helpful site on the Divisibility Rule.



Also here is a nice Khan Academy Video Reviewing Division Rules.

New Unit Comparing and Scaling

Welcome to our new unit focusing on ratios, rates, percents and proportions.

Investigation 1: Ways of Comparing: Ratios and Proportions
Investigation 1 focuses on different strategies for comparing quantities—using ratios, fractions, percents. Students learn what different types of comparative statements say about data given. They are asked to write comparative statements using ratios and differences that describe data. 



We have completed Investigation 1.1 -1.2 in the new Comparing and Scaling Book.
We focused on the ability to make comparisons of quantitative data. 
We focused on making comparisons through:
1. ratios
2. differences
3. percents
4. simplified ratios

Further we stressed the importance of making comparisons between part-to-part or part-to-whole.  

Tuesday, January 20, 2015

Skills Test Practice Tests #1-12



Strectching and Shrinking Study Guide


Today's Check-in on Scale Factor and Ratios.
Click here to find today's check-in.  This focuses on the following essential questions:
1. Can you find the scale factor given to similar shapes?
2. Can you find an unknown side length when given similar shapes?
3. Can you provide the relationship of scale factor to perimeter between two similar shapes?
4. Can you provide the relationship of scale factor to area between two similar shapes?

Wednesday, January 7, 2015

Similar Triangle Review Sheet

Attached here is a great review sheet for similar triangles.  
Click here to access.

On it are questions posed around:

  • Scale Factor
  • How to tell if two figures are similar
  • How side lengths change with scale factor
  • How area changes with scale factor.

Please check your understanding and come to Mr. Hagerty and Mr. Cuthbert with any questions.