Academic Supports

Find below details of Math and Science clinics running at GDHS, as well as links to a variety of online support websites

Math & Science Help at GDHS

Semester 2 2023-2024:

Tuesdays, Wednesdays, and Thursdays

Second half of Period 3


Room 225

Get math and science support from teachers and peer tutors

Semester 2 2023-2024:

Mondays, Wednesdays, and Fridays

Second half of Period 4


Room 225

Get math and science support from teachers and peer tutors

Free Online Resources

All Subjects

Created by the Ministry of Education:

Find made-in-Ontario activities, courses, and lessons to support your studies


TVO Mathify offers FREE 1:1 online math tutoring for students. Students must have their Ontario Education Number (OEN) in order to access this support

Use Desmos' graphing calculator to input questions and check for graphic accuracy

The Centre for Education in Mathematics and Computing at the U of W provides interactive lessons, activities, review material, practice work, and full solutions for all high school math courses

Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard 

Free Math Help has collated free lessons on various math topics from across the internet for review and self study


Find free writing resources and instructional material

A collection of lessons, worksheets, and interactive games to help you improve your literacy skills


Free audio and video files, references guides, tips, and additional resources to support the study of French.

Studying Tips and Strategies

Review dozens of resources explaining key strategies for studying, time management, and much more 

How to identify and cope with test anxiety