Grade 04 Science - EC: S4.D.1.3.3
Grade 04 Science - EC: S4.D.1.3.3
Continuum of Activities
The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.
This continuum of activities offers:
- Instructional activities designed to be integrated into planned lessons
- Questions/activities that grow in complexity
- Opportunities for differentiation for each student’s level of performance
Grade Levels
4th Grade
Course, Subject
Science
Activities
- Define a lentic system.
- Give two examples of lentic systems.
- Define a lotic system.
- Give two examples of lotic systems.
- Do you think that water flows faster in Lake Erie or in the Susquehanna River? Explain your thinking.
- Do you think the landscape changes more quickly around a lentic or a lotic ecosystem? Explain your thinking.
- When algae growth is not controlled, it can have a harmful impact in the ecosystem it lives in. Do you think algae growth is harder to control in lentic or lotic systems? Explain your thinking.
Answer Key/Rubric
- A lentic system is a body of water in which the water is still or flows slowly.
- Examples of lentic systems include, but are not limited to: ponds, lakes, bays
- A lotic system is a body of water in which the water flows quickly.
- Examples of lotic systems include, but are not limited to: rivers, streams, creeks
- Acceptable responses may include, but are not limited to:
- Rivers constantly flow in one direction.
- Lakes have high and low tides.
- Speed of river current increases with large amounts of precipitation.
- Water level in lakes increases with large amounts of precipitation.
- Speed or strength of tides in a lake do not change with large amounts of precipitation.
- Rivers constantly flow in one direction.
Use the rubric below to evaluate student responses.
Needs Improvement or Reinforcement |
Basic Understanding |
Mastery |
Student is unable to determine that water would flow quicker in the Susquehanna River. |
Student is able to determine that water would flow quicker in the Susquehanna River and explain their thinking. |
Student is able to determine that water would flow quicker in the Susquehanna River and uses facts explain their thinking. |
- Acceptable responses may include, but are not limited to:
- Rivers constantly flow in one direction.
- Speed of river current increases with large amounts of precipitation.
- A lake’s high and low tide heights are consistent.
- Speed or strength of tides in a lake do not change with large amounts of precipitation.
- Rivers constantly flow in one direction.
Use the rubric below to evaluate student responses.
Needs Improvement of Reinforcement |
Basic Understanding |
Mastery |
Student is unable to infer which landscape would change more rapidly. |
Student is able to infer which landscape would change more rapidly and explain their thinking. |
Student is able to infer which landscape would change more rapidly and uses facts to explain their thinking. |
- Acceptable responses may include, but are not limited to:
- Algae like to grow in still water.
- Lakes are more likely to have stagnant areas.
- Flowing river might naturally keep algae growth under control.
- Algae like to grow in still water.