Explore the reasons locusts threaten food security in Kenya, Ethiopia, and Somalia with this CNN interactive. Scroll through to learn how the coronavirus pandemic is hampering the region's ability to implement efforts to fight the impending maturation of locusts that reproduce quickly and devastate crops. The interactive also takes viewers through a timeline of extreme weather events leading to the threat to African crops.

tag(s): africa (138), climate change (88), insects (69), weather (165)

Math Monday is a weekly column discussing fun, experiential, and puzzling topics in mathematics. Each article takes a math idea, explains the concept, and uses images (and/or videos) to put the concept into action. Sample topics include hula hoop geometry, large stars, mathematical quilting, and much more. Subscribe to the RSS feed to view new topics each Monday using the link at the top of the page. (Or add the feed to your Flipboard account if you have a tablet.) There is also a very long list of archives to explore and try!

tag(s): colors (64), fractions (159), geometric shapes (136), origami (15), pi (26), puzzles (143)

This site provides many resources for math teachers of all grades and includes lesson plans, articles, classroom and administrator questions and answers, and helpful links - all located under the "helpful tool" tab at the top of the site. Click to find elementary resources, algebra, calculus, and other "basic math." Free webinars are also available within the site. Math Solutions was founded by Marilyn Burns, who is known as one of the foremost experts in elementary math instruction. Although much of the website is devoted to materials and Professional Development for sale, there are many resources available for free that are extremely helpful for classroom teachers. One such resource is the classroom lessons portion. Lessons are in ready to print PDF format making them easy to review and use for planning. Sample classroom conversations are often included along with samples of student work and suggestions for use in the classroom. This site also sells many resource materials, so links to these materials are included for alternative resources within the lesson. No need to buy, however! Teachers can sign up to receive the free monthly newsletter containing information about new materials on the Math Solutions site.

tag(s): problem solving (225)

This collection of games, and articles is designed to challenge students to use their problem solving skills. Activities are organized according to UK education system levels, but click on Help for an easy conversion guide. Each problem includes a question, related pictures or diagrams, a form for students to submit their solution, and helpful hints and notes for parents and teachers. A weekly challenge is also offered. Complete the free registration to participate in a discussion forum, pose questions online, or post messages.

tag(s): problem solving (225)