The tools I have to share with you this week are all related to math and can be applied at any grade level.
EquatIO is an extension to help with digital mathematical notations. You can type, handwrite, or dictate equations and formulas on your computer. There are two modes of simple and advanced input.
Wolfram Alpha is a computational tool for not only for math, but also science, technology, society, culture, and everyday life. The step by step solutions can be very useful.
Math Buddy Question of the Day generates a new math problem every day for each grade level. These are great bell ringer and warm-up activities. It will also show you a pie chart of the days responses and the percentage of people who got the answer correct or incorrect. This is helpful in pointing out the difficulty of the problem.
Desmos is a digital graphing tool that students can access on the chromebooks. The have curated classroom activities. This is a great resource for a digital calculator.