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There's a lot of anecdotal stuff online about the myths of teaching/learning math. These "Twelve Math Myths" seem to come up again and again.

Self-Check Quizzes Chapter Test Standardized Test Practice Vocabulary

From the abstract (full text requires subscription): "Many organisms can predict future events from the statistics of past experience, but humans also excel at making predictions by pure reasoning: integrating multiple sources of information, guided by abstract knowledge, to form rational expectations about novel situations, never directly experienced. Here, we show that this reasoning is surprisingly rich, powerful, and coherent even in preverbal infants. When 12-month-old infants view complex displays of multiple moving objects, they form time-varying expectations about future events that are a systematic and rational function of several stimulus variables. Infants' looking times are consistent with a Bayesian ideal observer embodying abstract principles of object motion. The model explains infants' statistical expectations and classic qualitative findings about object cognition in younger babies, not originally viewed as probabilistic inferences."

From the abstract: "We tested the hypothesis that certain aspects of nonperceptible Euclidian geometry map onto intuitions of space that are present in all humans, even in the absence of formal mathematical education. Our tests probed intuitions of points, lines, and surfaces in participants from an indigene group in the Amazon, the Mundurucu, as well as adults and age-matched children controls from the United States and France and younger US children without education in geometry. The responses of Mundurucu adults and children converged with that of mathematically educated adults and children and revealed an intuitive understanding of essential properties of Euclidean geometry." (Full text requires subscription.

suggests countering stereotypes by framing tests as "building brains" rather than measuting intelligence

Math has always been easy for me but it wasn't until I started taking classes to get my teaching certificate that I came to truly love math. Both my mom and dad loved to play card and board games. They taught my sister and I many mathematical concepts while playing these games without even realizing it. Puzzles and patterns, statistics and probability were daily conversations. Then came school. Math was nothing but numbers written on paper. Easy to do but very boring and seemingly unrelated to life. Breezing through each worksheet, page of math problem and even finishing the 7th grade math book mid-year, math became a hated subject to be put aside as quickly as possible. I vowed that the day I graduated from high school would be the last day I ever took a math class. I succeeded in that goal all through college but when I wanted to get my Elementary Teaching Certificate the state of Vermont had other ideas. So I signed up for a summer class in teaching math.

Eating chocolate could improve the brain's ability to do maths, a new study suggets. Jipeeeeeeeeeee- off to buy choccies

800+ videos

Khan Academy is a widely know and used cross-curricular educational video site. While there is some content for younger students, most videos are for older students and adults. http://ictmagic.wikispaces.com/Cross+Curricular

The real power lies in the practice problems. It allows to deep differentiation within a class.

The goal of HippoCampus is to provide high-quality, multimedia content on general education subjects to high school and college students free of charge. Lots of free online courses

The goal of HippoCampus is to provide high-quality, multimedia content on general education subjects to high school and college students free of charge. Lots of free online courses some cross referenced to textbooks.

Abstract: "Human adults from diverse cultures share intuitions about the points, lines, and figures of Euclidean geometry. Do children develop these intuitions by drawing on phylogenetically ancient and developmentally precocious geometric representations that guide their navigation and their analysis of object shape? In what way might these early-arising representations support later-developing Euclidean intuitions? To approach these questions, we investigated the relations among young children's use of geometry in tasks assessing: navigation; visual form analysis; and the interpretation of symbolic, purely geometric maps. Children's navigation depended on the distance and directional relations of the surface layout and predicted their use of a symbolic map with targets designated by surface distances. In contrast, children's analysis of visual forms depended on the size-invariant shape relations of objects and predicted their use of the same map but with targets designated by corner angles. Even though the two map tasks used identical instructions and map displays, children's performance on these tasks showed no evidence of integrated representations of distance and angle. Instead, young children flexibly recruited geometric representations of either navigable layouts or objects to interpret the same spatial symbols. These findings reveal a link between the early-arising geometric representations that humans share with diverse animals and the flexible geometric intuitions that give rise to human knowledge at its highest reaches. Although young children do not appear to integrate core geometric representations, children's use of the abstract geometry in spatial symbols such as maps may provide the earliest clues to the later construction of Euclidean geometry. "

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Girls who play video games are three times more likely to choose physical science, technology, engineering or maths (PSTEM) degrees compared to their non-gaming counterparts, according to new research from the University of Surrey

"Studies have linked confusing English number names to weaker arithmetic skills in children. Chinese, Japanese, Korean and Turkish express math concepts more clearly." Also explores how math games at an early age develop appreciation and skills.