Co-Teaching Ecosystems: Rigor Versus Scaffolding
Ms. Rivera is an ENL teacher who co-teaches seventh-grade science with Mr. Boone. Their class has 28 students, including 9 multilingual learners at WIDA levels 1.5 to 4.0. One student, Jean, is a newcomer from Haiti with interrupted formal education; he reads below grade level in Haitian Creole and English. The next unit is ecosystems, and the district pacing guide allows eight 45-minute periods before the state assessment. Mr. Boone wants to pull the ELs out during the lab so they can 'learn vocabulary' with Ms. Rivera, arguing that the lab is too dangerous and language-heavy. Ms. Rivera wants to co-plan language objectives and scaffolds so the ELs stay in the lab. They have one 30-minute common planning period each week, and the next unit starts Monday. The state assessment includes constructed responses that require explaining cause and effect.
1. What assumptions and principles should guide the disagreement over pull-out during lab? Explain your reasoning.
Read the worked answer
The disagreement is not really about safety; it is about whether ELs belong in the intellectual work of science. Pulling students out during the lab would remove them from the exact experience that makes ecosystems concrete and gives language meaning. Vocabulary lists in isolation are weak preparation for constructed responses that require cause-and-effect reasoning.
At the same time, Mr. Boone's safety concern is legitimate and should be addressed with structured lab roles, pre-taught procedures, visual safety cards, and a paraprofessional or co-teacher stationed near the SIFE student. Jean needs more scaffolding, not less content: pre-teaching in Haitian Creole where possible, labeled diagrams, a partner, and a reduced writing load with the same reasoning demand. The guiding principles are integrated content-language instruction, grade-level content with scaffolds, and assessment that allows students to show reasoning through multiple modes. The 30-minute planning time is too short for a full unit, so we must prioritize one high-leverage routine.
2. Design a two-day sequence for the ecosystem unit that keeps ELs in the lab and addresses both content and language, including supports for Jean.
Read the worked answer
Day 1 (45 minutes): Content objective-students will identify producers, consumers, and decomposers in a food web. Language objective-students will explain one energy path using 'because' and 'so.' I would pre-teach six key terms with images and a word bank, invite Jean to supply Haitian Creole connections where he can, and model a sentence frame: 'The ___ eats the ___, so energy moves from ___ to ___.' Students annotate a simple food web in pairs.
Day 2: Lab with stations. Roles: materials manager, recorder, reporter, safety checker; rotate so ELs are not always recorders. The observation sheet has visuals and cloze sentences. Jean gets a partially completed diagram and a shortened written product; his oral explanation is assessed. Formative check: an exit ticket with one cause-and-effect sentence. Safety is handled with a pre-lab demonstration, visual procedures, and a teacher check before each station. The co-teacher circulates with a language lens, noting who uses the target structure.
3. How would you use the 30-minute planning time and advocate for a sustainable co-teaching model?
Read the worked answer
I would use the 30 minutes with a strict agenda: 5 minutes on student data, 10 on the next lesson's language objective and scaffold, 10 on roles and materials, and 5 on what we will each observe. We would leave with a shared one-page plan.
To advocate for sustainability, I would document how co-planning changes student output, ask the principal for a monthly half-day or protected co-planning, and propose that the master schedule pair ENL and science sections. I would avoid framing Mr. Boone as resistant; instead, I would show him a SIFE writing sample before and after a scaffold. If the schedule does not change, I would build a bank of reusable scaffolds and ask the district ENL coordinator for support. The goal is not more meetings; it is a reliable routine that keeps ELs in the lab with access.