National Science Education Standards.

Discipline: Science

Professional Commentary: This promising practice resource helps students understand the stages of mitosis and associated cell structures within the context of learning about cancer. Students actively explore mitosis by investigating three hypothetical plant-based medicines....

Discipline: Science

Professional Commentary: This promising practice lesson asks students to design an experiment to measure the activity of yeast by collecting the carbon dioxide gas they give off.  This lesson should be used after a discussion on anaerobic respiration and fermentation as it does not include much content on these topics.  (author/cb) 

Discipline: Science

Professional Commentary: This question asks students to determine why a species of weeds that reproduces sexually has a survival advantage over a species of weeds that reproduces asexually when exposed to numerous applications of herbicide. This is a multiple choice test item used in a past Ohio Graduation Test assessment (for more information, see IMS: Assessments)....

Discipline: Science

Professional Commentary: This mini-collection on Reproduction is aligned to Life Science Benchmark B: Describe the characteristics of an organism in terms of a combination of inherited traits and recognize reproduction as a characteristic of living organisms essential to the continuation of the species. Several of these resources are also aligned to the scientific process standards, along with the multiple opportunities that each resource provides to incorporate writing in science....

Discipline: Science

Professional Commentary: This question asks students to identify an advantage of sexual reproduction when there is a change in environmental conditions. This is a multiple choice test item used in a past Ohio Achievement Test assessment (for more information, see IMS: Assessments)....

Discipline: Science

Professional Commentary: Students are asked to select the option that explains how animals that reproduce sexually differ from animals that reproduce asexually. This multiple choice question is a sample test item used in past National Assessments of Educational Progress (see About NAEP)....