Phenotypic Ratio from Monohybrid Cross

In a genetics course, students learn about inheritance patterns and genetic variation. They focus on a simple trait determined by a single gene with two alleles, A and a. The dominant allele, A, results in a phenotype showing a specific trait, while the recessive allele, a, does not. In order to understand how this trait is inherited, the students conduct a monohybrid cross between two heterozygous plants (genotype Aa). What is the expected phenotypic ratio of the offspring generated from this cross?