This Grade 9 Science evolution and classification bundle brings together 10 resources covering natural selection, genetic change, fossils, classification, and evolutionary relationships. The unit bundle costs $32 and saves 20% compared with buying each resource separately, giving you a set of related materials to use as you teach evolution and revisit key ideas across the unit.

📚 What's Included

Natural selection and population change
• Evolution Basics: Natural Selection and Genetic Change introduces the processes behind evolutionary change, while Natural Selection and Evolutionary Change focuses on how selection influences populations.
• Genetic Drift and Changes in Allele Frequencies covers changes in allele frequencies through genetic drift, alongside the role of population-level genetic change in evolution.
• Speciation and Reproductive Isolation examines how reproductive barriers relate to the formation of new species.
• Adaptive Radiation and Ecological Diversification addresses the diversification of organisms into different ecological roles.

🦴 Evidence and evolutionary relationships
• Fossil Records and Evidence for Evolution focuses on fossils as evidence of life's history.
• Evidence for Evolutionary History and Relationships considers evidence used to investigate evolutionary history.
• Molecular Evidence for Evolutionary Relationships focuses on molecular evidence for comparing organisms.
• Biological Classification and Evolutionary Relationships connects classification with how organisms are related through evolution.
• Phylogenetic Trees and Evolutionary Relationships covers the use of branching trees to represent evolutionary relationships.

🔬 Topics Covered

• Natural selection and genetic change
• Genetic drift and allele frequencies
• Speciation and reproductive isolation
• Adaptive radiation and ecological diversification
• Fossil evidence and evolutionary history
• Molecular evidence for relatedness
• Biological classification and phylogenetic trees

The resources address different parts of the unit, from mechanisms that change populations to evidence scientists use to compare organisms and reconstruct their evolutionary history. Together, they give you several ways to approach the main ideas without treating every lesson as the same topic.

👩‍🏫 How Teachers Can Use It

Use the resources alongside your Grade 9 evolution lessons, selecting the relevant topic as it comes up in class. They can also be useful for independent practice, small-group revision, or revisiting a concept students found difficult, such as distinguishing genetic drift from natural selection or interpreting phylogenetic relationships. Keep the relevant materials for later review when students need to connect evidence and mechanisms across the unit.

The bundle is identified as a TEKS resource in the supplied details. No specific TEKS code or individual standard is listed, so check the contents against your particular teaching sequence.

💰 Bundle Savings

The complete set costs $32. Purchased separately, the 10 resources cost $40, so the bundle saves you $8 (20%). Having the evolution and classification materials together also means less time spent searching for separate resources as you plan each lesson. You can choose the topic you need now and keep the remaining resources ready for the next part of the unit.