brief History of Mathematics

http://www.sfu.ca/~rpyke/History.pdf

k-12 Learning Materials

http://www.pnoytalks.com/search/label/Learning%20Materials

http://www.pnoytalks.com/2015/06/k-to-12-learning-materials-for-grade-10.html

http://www.pnoytalks.com/2015/06/k-to-12-learning-materials-for-grade-10.htmlk-12 Learning Materials for grade 10