This is level 1 of the B-Tunnel.
The platforms are all quite far away, and you may need the Child to float across. You could also use the Lizard, and change the gravity mid-jump. The Bunny jumps both high and far, so you can fly, and change walls if you miss the next platform.
Alternatively, you can also try to beat this level by using the Student. By changing the gravity, you can float on top of the platform on top of you and can let you reach the next platform easily. But this method covers a lot of ground, so please be aware of overshooting and miss the platform. If you think you are going to miss the next one, try to touch the platform on the wall instead.