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Using an elementary curriculum aligned to the Next Generation Science Standards improved students鈥� science learning, a new study finds.

The , from the research-and-analysis nonprofit WestEd, examines the Amplify Science 1st grade curriculum鈥攁 commercially available program designed to teach to the new standards. The shared expectations, released in 2014, emphasize science practices and investigating scientific phenomena in addition to content knowledge.

Twenty states and the District of Columbia , and other states say they have drawn on the standards to develop their own. Still, have found that high-quality materials to meet this new teaching framework are still hard to find.

This study provides some of the first evidence that available products are helping elementary students achieve these new learning goals, said Christopher Harris, the senior director of science and engineering education research at WestEd and the lead author on the paper.

Harris led a of Amplify鈥檚 middle school science curriculum last year, which found that the company鈥檚 program improved 7th grade science performance.

Amplify鈥檚 curriculum is 鈥減art of this new generation and new era of curriculum materials,鈥� Harris said. 鈥淭his study shows that it enhances early science learning鈥攁nd benefits literacy development.鈥�

Studying curriculum at scale

Researchers focused on 40 schools in three school districts in California, a state that has adopted the NGSS and approved a recommended list of matching texts. The full sample included 2,035 students. During the 2021-22 year, schools were randomly assigned to either use the Amplify Science program in 1st grade, or continue their instruction as usual.

In schools that used Amplify鈥檚 curriculum, students performed 0.24 of a standard deviation better on NGSS-aligned assessment questions鈥攁n impact on achievement that the researchers estimate is equivalent to the average student improving their percentile rank by 10 points.

When the study was conducted, there were no off-the-shelf, NGSS-aligned assessments for 1st graders, so researchers created their own, drawing on best practices for science assessment in upper elementary grades, Harris said. 69传媒 in the treatment condition also outperformed their peers in an assessment of science vocabulary.

The Amplify classrooms did slightly better than the control classrooms on a pre-NGSS standardized science test, but the researchers characterized that difference as 鈥渘egligible.鈥� This test covered general science knowledge, but didn鈥檛 assess NGSS practices鈥攕uch as interpreting data in tables, making predictions, or selecting tools for an investigation.

Amplify isn鈥檛 the only elementary science program to have been tested against NGSS standards. Multiple Literacies in Project-Based Learning, a curriculum designed by researchers at Michigan State University, has been found on standardized science tests aligned to NGSS.

All of these studies were conducted within the past few years鈥攔esearchers have just started to test whether new programs designed to teach NGSS standards are working. Large-scale, randomized controlled studies of curricula are rare in general, especially in science, which often receives less attention than subjects such as reading or math.

Matt Reed, the vice president of science for Amplify, said he鈥檚 glad that new science materials are starting to be subjected to 3rd party evaluations: 鈥淲hen it comes down to it, the central question that we should all be asking ourselves about any curricula across any subject is, 鈥楧oes it work?鈥欌��

Possible connections between science and literacy development

The study also compared the two groups鈥� performance on a standardized 1st grade reading test. They found that scores on this reading test for the two groups were similar.

That鈥檚 a notable finding, said Okhee Lee, a professor of childhood education at New York University who studies science and language learning. Lee was not involved in the WestEd study.

Science advocates have long argued that the subject is given short shrift in elementary school, crowded out by the big blocks of time devoted to reading and math鈥攕ubjects that are tested annually beginning in 3rd grade, while science is tested less frequently.

Using Amplify鈥檚 curriculum requires allocating more time to science than K-5 teachers report they usually spend on the subject in national surveys, the researchers wrote鈥攁 tricky proposition for schools under pressure to boost reading scores.

But spending more time on science didn鈥檛 dent reading comprehension, Lee said. 鈥淵ou didn鈥檛 lose,鈥� she said.

The researchers don鈥檛 know for sure why reading scores held steady, but it could be that the science teaching supports literacy development, said Harris. 鈥淭hat you can add science into the mix and still stay on par with kids who are doing their regular English/language arts instruction throughout the year is really intriguing,鈥� he said.

Amplify Science specifically integrates practice with literacy skills throughout the program, Reed said.

And the findings could be reassuring to educators who see spending more time on science as a 鈥渞isk鈥� to ELA scores, said Harris. Still, he added, schools must evaluate whether programs align with their state standards鈥攁nd to think about what support elementary teachers, who often don鈥檛 come from a science background, may need to implement materials effectively.

鈥淵ou can take a really good set of curriculum materials, and you can still stumble with them,鈥� Harris said.