A student expectation is directly related to the knowledge and skills statement, is more specific about how students demonstrate their learning, and always begins with a verb. Student expectations are further broken down into their component parts, often referred to as “breakouts.”
describe the hierarchical organization of organism, population, and community within an ecosystem.
S.7.13.B
describe the hierarchical organization of cells, tissues, organs, and organ systems within plants and animals;
Recurring themes and concepts — Connections to the content
Recurring themes and concepts provide a connective structure for scientific ideas across disciplines. The connection(s) below show some ways that teachers can help students understand how the content they are learning fits into the broader understanding of science. These connections do not represent all possible connections that might be made but highlight some that are appropriate for this grade level.
Patterns
Patterns are regular sequences that can be found throughout nature.
Across plants and animals, there is a pattern of decreasing complexity—organ systems are made up of organs, which are made up of tissues, which are made up of cells.
Scale, proportion, and quantity in systems
It is important to consider how changes in scale, proportion, or quantity affect a system’s structure or performance. Scale refers to the size of an object in relation to another object or its environment. Proportion is the ratio of one quantity to another. Quantity is a count of a set of objects or a measurement of a substance.
Within plants and animals, the number (quantity) of cells increases as the complexity increases—multiple cells make up a tissue, multiple tissues make up an organ, and multiple organs make up a system.
Model the interdependence and parts of a system
A system is a whole made of parts that work together. It has components and boundaries. It can interact with or be part of other systems.
The function of an organism's system depends on processes happening at each level of organization, down to the individual cells (parts).
Cross-curricular Connections
The cross-curricular connections are designed to help educators make content connections between the science TEKS and math, English language arts and reading, social studies, and technology applications. The standards below illustrate alignment between grade level content areas which may help educators develop cross-curricular lessons. These connections do not represent all possible connections that might be made.
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English Language Arts and Reading
ELAR.7.5.F make inferences and use evidence to support understanding
ELAR.7.5.H synthesize information to create new understanding
ELAR.7.6.C use text evidence to support an appropriate response