Students are presented with information that will allow them to recognize that …
Students are presented with information that will allow them to recognize that yeasts are unicellular organisms that are useful to humans. In fact, their usefulness is derived from the contrast between the way yeast cells and human cells respire. Specifically, while animal cells derive energy from the combination of oxygen and glucose and produce water and carbon dioxide as by-products, yeasts respire without oxygen. Instead, yeasts break glucose down and produce alcohol and carbon dioxide as their by-products. The lesson is also intended to provoke questions from students about the effects of alcohol on the human body, to which the teacher can provide objective answers.
“What lives here?” is a question that students tend to wonder about, …
“What lives here?” is a question that students tend to wonder about, and this activity taps into that natural curiosity. Students figure out what lives in an ecosystem by looking for evidence and by using a simple field guide. They deepen their understanding of evidence, both the evidence organisms leave behind and evidence in general. Often, students might see a hair, track, or other piece of evidence and jump to conclusions about what left it behind. They may also treat all evidence as equal, whether it’s actually flimsy or strong. This activity helps them slow down, make observations, and evaluate their evidence as strong, less strong, or weak. Later in the activity, students make ecosystem models from their notes and, through discussion, use them as evidence to try to better understand the ecosystem.
Science literacy is of great value for any citizen of the world. …
Science literacy is of great value for any citizen of the world. For students to develop science literacy, it’s important that they not only engage in science practices, but also that they take time to reflect on practices they use, which most students are unlikely to do without scaffolding and support from an instructor. This activity engages students in reflecting on science practices.
This activity has three parts that are meant to be led with students before and after a field experience in which students engage in science practices. The first two parts are meant to be taught at the beginning of a field experience, and the third part at the end of the field experience. In the Science = Adventure introduction, the instructor builds up anticipation and excitement about doing field science. Then the instructor introduces some core field science practices by leading students in using those practices briefly to explore a mysterious object. Later during the Post: Debriefing Science Practices, after other field science experiences (not included in this activity), students reflect back on the science practices they engaged in and experienced.
The major purpose of this lesson is to promote the learning of …
The major purpose of this lesson is to promote the learning of eye function by associating eye problems and diseases to parts of the eye that are affected. Included in this module are discussions and activities that teach about eye components and their functions. The main activity is dissecting a cow eye, which in many high schools is part of the anatomy curriculum. This lesson extends the curriculum by discussing eye diseases that students might be familiar with. An added fun part of the lesson is discussion of what various animals see.
Learn how to use Punnett squares to calculate probabilities of different phenotypes. …
Learn how to use Punnett squares to calculate probabilities of different phenotypes. Includes worked examples of dihybrid crosses. independent assortment, incomplete dominance, codominance, and multiple alleles.
Students set up a simple way to indirectly observe and quantify the …
Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. A second, smaller test tube is then placed upside-down inside the solution. As the yeast cells respire, the carbon dioxide they produce is trapped inside the inverted test tube, producing a growing bubble of gas that is easily observed and measured. Students are presented with the procedure for designing an effective experiment; they learn to think critically about experimental results and indirect observations of experimental events.
The inquiryHub (iHub) Biology curriculum is a year-long Biology course anchored in …
The inquiryHub (iHub) Biology curriculum is a year-long Biology course anchored in phenomena and aligned to the Next Generation Science Standards. Guided by the Next Generation Science Standards (NGSS), inquiryHub High School Biology embeds community science into curriculum. Using research-based approaches to teaching science in a deeply digital environment, students contribute resources, observations, data, and analyses to solve larger scientific problems.
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