This well-designed, online reference tool is a free, open-education resource that provides thorough explanations and clear examples across a broad range of subjects, including literacy, mathematics, and science. An engaging and customizable resource, “cK-12” provides a platform for teachers to incorporate multi-modal instruction. The website offers content relevant to various courses within the BC curriculum and is appropriate for usage for students from Kindergarten through to Grade 12. Teachers can use this resource as a platform to create their own online textbooks, to offer homework help via forums, and to provide additional activities to support in-class instruction. Log in to read the full review.