mathcounts notes

Show your work, or, how my math abilities started to decline I think it's problematic the way schools teach Algebra. Those meaningles...

Does our approach to teaching math fail even the smartest kids ?  Quotes from that article  " According to research from the Universi...

Thanks to Achuth for trying out these questions and time them as an actual Mathcounts test.  :)  First week : warm up 1, 4, 7.  (time for 40...

An original problem on similar triangles from Varun (from FL)

 You can download this year's Mathcounts state competition questions here . Trickier 2013 Mathcounts State Sprint Round questions : S...

Mathcounts problems : state/nationals level

You can now download and discuss with your friends this year's school and chapter problems. Here is the link to the official Mathcounts...

Question #1 : The area ratio of two equilateral triangles are 4 to 9 and the sum of their perimeter is 30 √  3 . What is the area of the a...

Note that:  \(\left( x+y\right) ^{2}-2xy= x^{2}+y^{2}\) \(\left( x-y\right) ^{2}+2xy= x^{2}+y^{2}\) \(\left(x-y\right) ^{3}+3xy\left( x-...

Testimonials from my students/parents   :)  Dear Mrs Lin, I just did not get the opportunity earlier to thank you for all your help...

Check out Mathcounts here, the best competition math program for middle school students. Download this year's Mathcounts handbook he...

Simon's Favorite Factoring Trick from AoPS Notes from my blog Now try this year's team round #9 using SFFT. Review all the ...

Tackling Problems with Vieta Section 10.4 : Vieta for Quadratics Part 1 Section 10.4 : Vieta for Quadratics Part 2 Section 10.4 ...

This week, we'll continue discussing this year's Mathcounts state harder problems. Please try these problems before our lesson. ...

Find the area of the football shape, or the petal shape. The below Mathcounts mini presents two methods. Circle and area revisited from M...

Check out Mathcounts here, the best competition math program for middle school students. Download this year's Mathcounts handbook her...

For Mathcounts advanced group -- harder  Mathcounts State/National problem on 3-D geometry.                       From Mathcounts Mini : ...

Venn Diagram explained from AoPS : learn the two set and three set examples Principle of Inclusion-Exclusion from AoPS : again, two set a...

Part 1: See below for links: They are all related to dimensional change and similar polygons. Dimensional change questions I  Dimensio...

Watch Joint Proportion from Art of Problem Solving  Spend some time pondering on "Work" word problems from Purple Math.  These...