Many adult ESL classes are multilevel, combining several CLB levels or types of learners (ESL and ESL Literacy). The following strategies can facilitate PBLA implementation in multilevel classes:

• Group learners together for learning activities and assessment tasks.
• For a particular task, use the same text but differentiate the activity according to level, or use different texts and have learners do the same task. For example, for a CLB 2-3 task that involves writing about a class event, the CLB 2 learners could complete sentence stems while the CLB 3 learners write complete sentences. Follow a similar process in reflection activities.
• Develop assessment tasks that address more than one level.
• Assess different groups of learners on different days.
• Use volunteers (if possible) who can support instruction in the classroom.