# 2.OA.1 - Comparison Word Problem

## By MathwithMrAlmeida

In this video Mr. Almeida explain how to use bar modeling in Singapore math to solve word problems that deal with comparing. This technique of using model drawings to solve word problems is recommended by the Common Core mathematics standards. Mr. Almeida shows how students should stop at punctuation marks and interpret the information. This is a great resource for parents students and teachers.

# 6.RP.3 - Solve Word Problems Using Tape Diagrams

## By MathwithMrAlmeida

In this video, Mr. Almeida shows you how to solve ratio word problems using tape diagrams. The models create equivalent ratios because you are multiplying both quantities in one ratio by the same positive number (the length of 1 unit). This meets Common Core Standard for Mathematics 6.RP.3.

# Reasoning with Equations and Inequalities

Sal solves the equation 4x^2+40x-300=0 by completing the square.265

# Algebra Basics: What Is Algebra? - Math Antics

## By Lumos Learning

This video gives an overview of Algebra and introduces the concepts of unknown values and variables. It also explains that multiplication is implicit in Algebra.

# Autism: An evolutionary perspective, Professor Simon Baron-Cohen, 1st Symposium of EPSIG, 2016

## By Lumos Learning

First Symposium of the Evolutionary Psychiatry Special Interest Group of the Royal College of Psychiatrists, Oct 4th 2016 in London. Lecture by Professor Simon Baron-Cohen from Cambridge University Autism Research Centre.