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Number Sense






30 minutes

Regional Focus



Google Slides


This lesson plan is licensed under Creative Commons.

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Biodiversity: Number Sense Printable

Created By Teacher:
Last Updated:
May 12, 2024
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In this activity, students engage with reading, writing, and comparing numbers to better understand the effects of human activity on the world’s organisms. Each section of the 1,000 Number Packet highlights a different species whose habitat has been impacted by climate change. 
Accompanying Teaching Materials
Teaching Tips
  • Review the background information and directions with students as a whole group. Then, let students work independently on the 1,000 Number Packet. The Comparing Numbers section can be completed in partners or independently.
  • See the lesson Using Numbers to Think About Biodiversity (Number Sense and Biodiversity #2) for differentiated options, 100 Number Packet and 20 Number Packet (teacher-led).
  • It is important to note that the concept of endangered animals may be difficult for some students. Be sure to check in and provide a safe space for students to share their feelings related to this topic.
  • This resource is a great addition to a unit on understanding numbers in base ten.
  • To extend learning, students may research other organisms on the IUCN Red List in their region.
Scientist Notes

Students can use numbers to investigate and tally species that are listed on the IUCN Red List. It is imperative that they are able to identify and correlate the pace of biodiversity loss with changes in the environment. Every supplementary resource included in the activity guide has been thoroughly researched and approved by our scientific review team.


This resource addresses the listed standards. To fully meet standards, search for more related resources.

Supporting Standards

  • Mathematics
    • Number & Operations in Base Ten (K-5)
      • 2.NBT.A.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
      • 2.NBT.A.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.
  • Science
    • LS4: Biological Evolution: Unity and Diversity
      • 2-LS4-1. Make observations of plants and animals to compare the diversity of life in different habitats.

Note On Standards:

This lesson is aligned to SubjectToClimate standards. Review the aligned standards directly in the lesson plan document and teacher slideshow.

Discover more on SubjectToClimate.
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