How scientists and engineers work
Students start the year learning how science actually gets done. They ask testable questions, plan experiments, collect data, and back up their claims with evidence instead of opinions.
This is the year science stops being a list of facts and becomes a way of reasoning. Students build real explanations from evidence, using math, models, and lab data to back up what they claim. They study how atoms make up matter, how energy moves through ecosystems, how traits pass between generations, and how human choices shape the planet. By spring, students can read a science article, weigh the evidence, and explain whether the conclusion holds up.
Students start the year learning how science actually gets done. They ask testable questions, plan experiments, collect data, and back up their claims with evidence instead of opinions.
Students dig into the physical world. They study what everything is made of, why objects move or stop, and how energy moves from one place to another through heat, light, sound, and electricity.
Students look at life from cells up to whole ecosystems. They study how bodies work, how traits pass from parents to children, and how species change over long stretches of time.
Students zoom out to the planet and the solar system. They study how Earth's land, water, and air shape each other, and how human choices affect climate, resources, and natural hazards.
Students close the year by solving real problems. They define a need, sketch possible solutions, test prototypes, and improve their designs based on what the data shows.
Students practice turning a curiosity or real-world problem into a question that can actually be tested or built. That means deciding whether the problem calls for an experiment, a design solution, or both.
Students build diagrams, simulations, or physical prototypes to show how a system or process works, then use those models to explain patterns or test design ideas.
Students design and run experiments to collect real data and find out whether their ideas hold up. The work includes choosing what to measure, controlling variables, and recording results carefully enough that someone else could repeat the test.
Students look at data from experiments or research and figure out what it actually means, spotting trends or patterns that answer a scientific question.
Students apply math and data analysis to back up scientific conclusions. This might mean calculating rates, analyzing patterns in data sets, or building simple models to test whether an explanation holds up.
Students build written explanations for science phenomena by connecting their reasoning directly to data or lab results. The explanation has to hold up against what the evidence actually shows, not just what seems reasonable.
Students look at two or more competing scientific explanations or solutions and use evidence to argue which one holds up better. The focus is on the evidence, not on who sounds most convincing.
Students read scientific sources, judge how reliable they are, and explain findings clearly to others. This standard covers the full loop: gathering information, checking it against evidence, and sharing it in writing, diagrams, or presentations.
| Standard | Definition | Code |
|---|---|---|
| Asking Questions and Defining Problems High School | Students practice turning a curiosity or real-world problem into a question that can actually be tested or built. That means deciding whether the problem calls for an experiment, a design solution, or both. | MA-SCI.SEP.9-12.1 |
| Developing and Using Models High School | Students build diagrams, simulations, or physical prototypes to show how a system or process works, then use those models to explain patterns or test design ideas. | MA-SCI.SEP.9-12.2 |
| Planning and Carrying Out Investigations High School | Students design and run experiments to collect real data and find out whether their ideas hold up. The work includes choosing what to measure, controlling variables, and recording results carefully enough that someone else could repeat the test. | MA-SCI.SEP.9-12.3 |
| Analyzing and Interpreting Data High School | Students look at data from experiments or research and figure out what it actually means, spotting trends or patterns that answer a scientific question. | MA-SCI.SEP.9-12.4 |
| Mathematics and Computational Thinking High School | Students apply math and data analysis to back up scientific conclusions. This might mean calculating rates, analyzing patterns in data sets, or building simple models to test whether an explanation holds up. | MA-SCI.SEP.9-12.5 |
| Constructing Explanations High School | Students build written explanations for science phenomena by connecting their reasoning directly to data or lab results. The explanation has to hold up against what the evidence actually shows, not just what seems reasonable. | MA-SCI.SEP.9-12.6 |
| Engaging in Argument from Evidence High School | Students look at two or more competing scientific explanations or solutions and use evidence to argue which one holds up better. The focus is on the evidence, not on who sounds most convincing. | MA-SCI.SEP.9-12.7 |
| Communicating Information High School | Students read scientific sources, judge how reliable they are, and explain findings clearly to others. This standard covers the full loop: gathering information, checking it against evidence, and sharing it in writing, diagrams, or presentations. | MA-SCI.SEP.9-12.8 |
Students examine how atoms and molecules are arranged and how they interact to explain physical phenomena like melting, dissolving, or conducting electricity.
Students study how objects speed up, slow down, or stay still by applying Newton's laws and tracing how energy moves through a system. They investigate what makes motion predictable and what keeps structures from falling apart.
Students trace how energy changes form and moves from one object to another, and show that the total amount of energy in a system stays the same even when it shifts.
Students study how waves, from sound to light to radio signals, carry energy and information from one place to another. They look at real applications like medical imaging, wireless communication, and fiber optics.
| Standard | Definition | Code |
|---|---|---|
| Matter and Interactions High School | Students examine how atoms and molecules are arranged and how they interact to explain physical phenomena like melting, dissolving, or conducting electricity. | MA-SCI.PS.9-12.1 |
| Motion and Stability High School | Students study how objects speed up, slow down, or stay still by applying Newton's laws and tracing how energy moves through a system. They investigate what makes motion predictable and what keeps structures from falling apart. | MA-SCI.PS.9-12.2 |
| Energy High School | Students trace how energy changes form and moves from one object to another, and show that the total amount of energy in a system stays the same even when it shifts. | MA-SCI.PS.9-12.3 |
| Waves and Information High School | Students study how waves, from sound to light to radio signals, carry energy and information from one place to another. They look at real applications like medical imaging, wireless communication, and fiber optics. | MA-SCI.PS.9-12.4 |
Students study how living things are built and how they work, from the smallest cell up to full body systems like the heart and lungs.
Students trace how energy flows through a food web and how matter like carbon or water cycles back through living and nonliving things. They also examine how organisms in a community compete, cooperate, or depend on each other to survive.
Students examine how traits like eye color or height pass from parents to offspring, and why siblings don't turn out identical. They look at patterns in real and simulated family data to explain why variation shows up across generations.
Students study how all living things share common traits while also differing in key ways, then examine the forces like natural selection and genetic variation that explain how species change over time.
| Standard | Definition | Code |
|---|---|---|
| Structures and Processes High School | Students study how living things are built and how they work, from the smallest cell up to full body systems like the heart and lungs. | MA-SCI.LS.9-12.1 |
| Ecosystems High School | Students trace how energy flows through a food web and how matter like carbon or water cycles back through living and nonliving things. They also examine how organisms in a community compete, cooperate, or depend on each other to survive. | MA-SCI.LS.9-12.2 |
| Heredity High School | Students examine how traits like eye color or height pass from parents to offspring, and why siblings don't turn out identical. They look at patterns in real and simulated family data to explain why variation shows up across generations. | MA-SCI.LS.9-12.3 |
| Biological Evolution High School | Students study how all living things share common traits while also differing in key ways, then examine the forces like natural selection and genetic variation that explain how species change over time. | MA-SCI.LS.9-12.4 |
Students study where Earth sits in the solar system, how planets and moons move in predictable patterns, and how Earth itself formed and changed over billions of years.
Students study how Earth's major systems, the rocky ground, the oceans, the air, and living things, affect and change one another. A volcanic eruption, for example, shows how rock, air, and life are all connected.
Students examine how human choices, such as burning fuel or clearing land, change Earth's systems, and how events like earthquakes or floods shape where and how people live.
| Standard | Definition | Code |
|---|---|---|
| Earth's Place in the Universe High School | Students study where Earth sits in the solar system, how planets and moons move in predictable patterns, and how Earth itself formed and changed over billions of years. | MA-SCI.ESS.9-12.1 |
| Earth's Systems High School | Students study how Earth's major systems, the rocky ground, the oceans, the air, and living things, affect and change one another. A volcanic eruption, for example, shows how rock, air, and life are all connected. | MA-SCI.ESS.9-12.2 |
| Earth and Human Activity High School | Students examine how human choices, such as burning fuel or clearing land, change Earth's systems, and how events like earthquakes or floods shape where and how people live. | MA-SCI.ESS.9-12.3 |
Students identify a real problem, sketch or build a solution, then test and adjust the design until it works better. This is the core loop of engineering work.
Engineering shapes daily life, and daily life shapes engineering. Students examine how new tools and systems change society, and how social needs push engineers to solve different problems.
| Standard | Definition | Code |
|---|---|---|
| Engineering Design High School | Students identify a real problem, sketch or build a solution, then test and adjust the design until it works better. This is the core loop of engineering work. | MA-SCI.ETS.9-12.1 |
| Links Among Engineering, Technology, and Society High School | Engineering shapes daily life, and daily life shapes engineering. Students examine how new tools and systems change society, and how social needs push engineers to solve different problems. | MA-SCI.ETS.9-12.2 |
High school MCAS in Biology, aligned to the Massachusetts STE Curriculum Framework. Taken after completion of a biology course.
Students study four big areas: physical science (atoms, forces, energy, waves), life science (cells, ecosystems, genetics, evolution), earth and space science (the planet and the universe), and engineering design. They also learn how to investigate questions and back up claims with evidence.
Ask students to explain what they learned in plain words, the way they would to a younger sibling. If they get stuck, that is the spot to slow down and look at the notes or textbook together. Teaching it out loud is one of the best ways to lock it in.
Some facts matter, like the parts of a cell or the laws of motion, but most of the work is using those facts to explain how something happens. A student who can explain why ice floats is in better shape than one who just memorized a definition.
Most schools build the year around one strand at a time, often biology, chemistry, or physics, with earth science and engineering woven through. Pick a small number of anchor phenomena per unit and return to the science practices in each one rather than teaching them as a separate chapter.
Graph reading, unit conversions, and writing a clear evidence-based explanation tend to slow students down all year. Building short, repeated practice with these into every unit pays off more than one big review week.
Plenty. Students use algebra to work with formulas, read and make graphs, and run basic calculations for things like speed, energy, and population change. If math is shaky, science problems will feel harder than they need to.
Pick one thing from the day, a lab result, a diagram, a news story about climate or health, and have students explain what is happening and what evidence supports it. Short, regular practice with explaining beats long cram sessions before a test.
By the end of the year, students should be able to read a science article or data set, pull out the main claim, and judge whether the evidence supports it. They should also be comfortable designing a simple investigation and writing up what they found.
Science asks how the world works. Engineering asks how to solve a problem using what we know. Students define a problem, sketch possible solutions, test one, and improve it based on what went wrong. Both sides use the same habits of evidence and revision.