Research shows that everyone can learn math to high levels.
It is experiences that grows the brain, reviewing and thinking more deeply causes brain synapses to react. How a student feels about his/her capabilities affect how he/she approaches tasks.
On the downside, many of these lessons are intended for children up to eighth grade.
Still, if you look hard enough, you can find a few that are intended for high school and beyond.
It isn’t important to be fast at math but to think deeply and creatively.
The idea that speed is important in math can be detrimental as it can cause students to feel defeated and closed minded when confronted with more challenging math problems.
Ed Creative also has lessons from overseas, including several from the United Kingdom. maintains the lessons on the page to make sure they’re still accessible and up to date.
This resource is the first that lets you get in direct contact with the page’s curator. You can even contact Edmund to suggest your own resources (or point out links that stopped working).
On the upside, some lessons overlap with other subjects.
For example, one resource is entitled the ad is what it is. If you’re looking for something more structured, you’re in luck!