Tap Math

This app is a problem-solving blast! It involves cascading math questions that players have to answer before the blocks fall to the bottom of the screen. You can toggle between addition, subtraction and multiplication. You can also choose different speed levels, with Children being the slowest and Hardcore the fastest. (You'll want to upgrade to the full-option version to get those level choices.) Tap Math is ideal for Grade 2s, who are beginning to learn multiplication, but it is also a fantastic tool for your math-loving high school students.

DEVICE: Apple, Android
SOURCE: App Store, Google Play
RATING: 4+, Everyone

iNaturalist

Once your budding conservationists upload photos of plants, insects and animals, the iNaturalist community will help identify the flora and fauna. Users' observations feed into scientific research to better understand and protect nature. You can also find out what nearby participants are discovering, and take part in nature-focused projects, for instance protecting Ontario's provincial parks. This app works well with Grade 11 biology, which involves lessons on plants and animals. For best practices, read the teachers' guide.

DEVICE: Apple; Android
SOURCE: App Store, Google Play
RATING: 4+, Everyone

Monster Park

Monster Park - AR Dino World augments smartphone and tablet cameras to put lifelike dinos into any scene. Picture a T. Rex in town. Now, imagine what your students might do! How about creating presentations to tell classmates about these reptiles as they appear in the classroom or playground? That aligns with developing oral communication skills; one of the strands of the elementary curriculum. Note that this app is best for nine-year-olds and older, according to Apple's rating system. It comes with one dinosaur; additional creatures cost extra.

DEVICE: Apple; Android
SOURCE: App Store, Google Play
RATING: 9+; Everyone