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For curious children

Sharks

Ten short lessons about the cartilaginous skeleton, gills, teeth, senses, whale shark, hammerhead shark, development and the marine environment. 50 own problems for comparison and careful conclusions.

Trial tasks are available without registration. To save results, start classes in your student profile.

Illustration for the course "Sharks"
  • 10Thematic lessons
  • 10Sequential lessons
  • 50Scored tasks
  • 10Theory sections
From topic to practice

What will we study

Choose a section or take classes in order. Both modes use the same objectives and results.

Fish and breathTwo short lessons and ten problems.
  1. Shark is a cartilaginous fish

    We classify by device, not by size.

    Tasks: 5 · Theory: 1 · Free lesson
  2. Gills and water

    Let's look at breathing and an important exception.

    Tasks: 5 · Theory: 1 · Free lesson
Skin, teeth and feelingsTwo short lessons and ten problems.
  1. Skin and teeth

    Compare the cover and renewal of teeth.

    Tasks: 5 · Theory: 1
  2. How a shark notices the world

    We distinguish smell, movement and electrical signals.

    Tasks: 5 · Theory: 1
Unusual sharksTwo short lessons and ten problems.
  1. Whale shark

    Don't confuse the name with the animal group.

    Tasks: 5 · Theory: 1
  2. Hammerhead Shark

    We read the description of the unusual head.

    Tasks: 5 · Theory: 1
Places of life and developmentTwo short lessons and ten problems.
  1. Different places of life

    Let's not declare the entire ocean to be the same.

    Tasks: 5 · Theory: 1
  2. How baby sharks appear

    We distinguish between development options.

    Tasks: 5 · Theory: 1
Maritime communications and surveillanceTwo short lessons and ten problems.
  1. Shark in the sea net

    Connecting food, animals and the environment.

    Tasks: 5 · Theory: 1
  2. Notes from a Marine Observer

    Distinguishing evidence from conjecture.

    Tasks: 5 · Theory: 1

Two ways to practice

By section

The course consists of chapters and thematic lessons. You can focus on one topic and understand it step by step.

Step by step

Choose a grid of activities or a route map. Consecutive classes open in order. One lesson may contain tasks from different topics.

Learn at your own pace

Start with the first discovery

Free thematic lessons: 2. Free consecutive lessons: 2. Other classes open with Premium. Access is granted by the parent.

Completed tasks, stars and results are saved in the student’s profile. Hints and explanations help you figure out the answer.